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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</P>

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<P STYLE="font: bold 12pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">FORM S-8</P>

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REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt">ASE Technology
Holding Co., Ltd.</FONT><BR>
<FONT STYLE="font-weight: normal">(Exact name of registrant as specified in its charter)</FONT></P>

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    <TD STYLE="width: 33%; text-align: center"><B>Republic of China</B><BR>
(State or other jurisdiction of incorporation or organization)</TD>
    <TD STYLE="width: 34%; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 33%; text-align: center"><B>N/A</B><BR>
(I.R.S. Employer Identification No.)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center"><B>26 Chin Third Road</B><BR>
<B>Nantze Export Processing Zone</B><BR>
<B>Nantze, Kaohsiung, Taiwan</B><BR>
<B>Republic of China</B><BR>
(Address of Principal Executive Offices)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
</TABLE>
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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt">ASE Technology
Holding Co., Ltd. 2018 Employee Stock Option Plan</FONT><BR>
<FONT STYLE="font-weight: normal">(Full Title of the Plan)</FONT></P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">C T Corporation System<BR>
111 Eighth Avenue<BR>
New York, New York 10011<BR>
(212) 590-9070<BR>
<FONT STYLE="font-weight: normal">(Name, address and telephone number, including area</FONT><BR>
<FONT STYLE="font-weight: normal">code, of agent for service)</FONT></P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><I>Copy to:</I><BR>
James C. Lin, Esq.<BR>
Davis Polk &amp; Wardwell LLP<BR>
c/o 18th Floor, The Hong Kong Club Building<BR>
3A Chater Road<BR>
Hong Kong<BR>
(852) 2533-3300</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions
of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting company,&rdquo; and &ldquo;emerging
growth company&rdquo; in Rule 12b-2 of the Exchange Act.</P>

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    <TD STYLE="width: 55%"><FONT STYLE="font-size: 10pt">Large accelerated filer <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9746;</FONT></FONT></TD>
    <TD STYLE="width: 45%"><FONT STYLE="font-size: 10pt">Accelerated filer <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-size: 10pt">Non-accelerated filer <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT> (Do not check if a smaller reporting company) </FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">Smaller reporting company <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Emerging growth company <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></FONT></TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">If an emerging growth company, indicate by check mark if the
registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
provided pursuant to Section 7(a)(2)(B) of the Securities Act. <FONT STYLE="font-family: Times New Roman, Times, Serif">&#9744;</FONT></P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">CALCULATION OF REGISTRATION FEE</P>

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    <TD STYLE="width: 20%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Title
of securities to be registered</B></P></TD>
    <TD STYLE="width: 14%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Amount
to be registered</B><SUP>(1)</SUP></P></TD>
    <TD STYLE="width: 23%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Proposed
maximum offering</B><BR>
<B>price per share</B></P></TD>
    <TD STYLE="width: 27%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Proposed
maximum aggregate</B><BR>
<B>offering price</B></P></TD>
    <TD STYLE="width: 16%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Amount
of</B><BR>
<B>registration fee</B><SUP>(5)</SUP></P></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">Common Shares, par value NT$10.00 per share</FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">131,862,500<SUP>(2)</SUP></FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$1.84<SUP>(2)</SUP></FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$242,627,000</FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$29,406.39</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">17,517,500<SUP>(3)</SUP></FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$1.99<SUP>(3)</SUP></FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$34,859,825</FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$4,225.01</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">TOTAL</FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">150,000,000<SUP>(4)</SUP></FONT></TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">US$277,486,825</TD>
    <TD STYLE="vertical-align: bottom; text-align: center"><FONT STYLE="font-size: 10pt">US$33,631.40</FONT></TD></TR>
</TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"> <I>Notes:</I></P>



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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">(1)</TD><TD>This Registration Statement on Form S-8 (this &ldquo;Registration Statement&rdquo;) covers Common Shares, par value NT$10.00
per share (the &ldquo;Shares&rdquo;) of ASE Technology Holding Co., Ltd. (the &ldquo;Company&rdquo; or the &ldquo;Registrant&rdquo;)
(i) issuable pursuant to the ASE Technology Holding Co., Ltd. 2018 Employee Stock Option Plan (the &ldquo;Plan&rdquo;) and (ii)
pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;), any additional Shares
that become issuable under the Plan by reason of any stock dividend, stock split, or other similar transaction.</TD></TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">(2)</TD><TD>These Common Shares to be registered represent shares of currently outstanding options under the Plan. The per share and
                                                            aggregate offering prices are estimated pursuant to Rule 457(h) under the Securities Act solely for the purpose of
                                                            calculating the amount of the registration fee, based on NT$<FONT STYLE="font-family: Symbol">56.4</FONT>, which is the
                                                            exercise price of options already granted. For the purpose of calculating the per share and aggregate offering prices, New
                                                            Taiwan dollar amounts were translated into U.S. dollars at a rate of NT$30.71 to US$1.00, the exchange rate as set forth
                                                            in the H.10 weekly statistical release of the Federal Reserve System of the United States on February 22, 2019.</TD></TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">(3)</TD><TD>These Common Shares to be registered are reserved for future grants
under the Plan. The per share and aggregate offering prices are estimated pursuant to Rule 457(h) under the Securities Act solely
for the purpose of calculating the amount of the registration fee, based on the average of the high price of NT$62.3 and the low
price of NT$60.0 of the Registrant&rsquo;s Common Shares reported on the Taiwan Stock Exchange on February 25, 2019, in accordance
with Rule 457(c) under the Securities Act. For the purpose of calculating the per share and aggregate offering prices, New Taiwan
dollar amounts were translated into U.S. dollars at a rate of NT$30.71 to US$1.00, the exchange rate as set forth in the H.10
weekly statistical release of the Federal Reserve System of the United States on February 22, 2019.</TD></TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">(4)</TD><TD>This total amount includes 620,000 shares that are not listed above because the Company has canceled these shares and
                                                            will not reserve these shares for future grants.</TD></TR></TABLE>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">(5)</TD><TD>Rounded up to the nearest penny.</TD></TR></TABLE>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">PART I</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">INFORMATION REQUIRED IN THE SECTION
10(a) PROSPECTUS</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Information required by Item 1 and Item
2 of Part I to be contained in the Section 10(a) prospectus is omitted from this Registration Statement in accordance with the
provisions of Rule 428 under the Securities Act and the introductory note to Part I of Form S-8. The documents containing the information
specified in Part I have been or will be delivered to the participants in the Plan as required by Rule 428(b). These documents,
which include the statement of availability required by Item 2 of Part I, and the documents incorporated by reference in this Registration
Statement pursuant to Item 3 of Part II, taken together, constitute a prospectus that meets the requirements of Section 10(a) of
the Securities Act.</P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">PART II</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">INFORMATION REQUIRED IN THE REGISTRATION
STATEMENT</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 3.</TD><TD>Incorporation of Documents by Reference</TD></TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The following documents of the Registrant
filed with the Securities and Exchange Commission (the &ldquo;Commission&rdquo;) are incorporated herein by reference:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD>the annual report on Form 20-F under the Securities Exchange Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;) for Advanced
Semiconductor Engineering, Inc. (&ldquo;ASE&rdquo;), the predecessor company of the Registrant, for the fiscal year ended December
31, 2017 filed with the Commission on March 28, 2018; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD>the description of common shares and American depositary shares of the Registrant contained under the headings &ldquo;Description
of HoldCo Common Shares&rdquo; and &ldquo;Description of HoldCo American Depositary Shares&rdquo; in ASE&rsquo;s registration statement
on Form F-4 (File No. 333-214752) filed with the Commission on January 16, 2018, including any amendment or report filed for the
purpose of updating such description.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">In addition, all documents subsequently
filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a post-effective
amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining
unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing
of such documents.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Any statement contained herein or in a
document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes
hereof or of the related prospectus to the extent that a statement contained herein, (or in any other subsequently filed document
which is also incorporated or deemed to be incorporated by reference herein), modifies or supersedes such statement. Any such statement
so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 4.</TD><TD>Description of Securities</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 5.</TD><TD>Interests of Named Experts and Counsel</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-weight: normal">Not applicable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 6.</TD><TD>Indemnification of Directors and Officers</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The relationship between the Registrant
and its directors and officers is governed by the Republic of China (&ldquo;ROC&rdquo;) Civil Code, the ROC Company Law and the
Registrant&rsquo;s Articles of Incorporation. There is no written contract between the Registrant and its directors and officers
governing the rights and obligations of such parties. Under Section 10, Chapter 2, Book II of the ROC Civil Code, each person who
was or is a party or is threatened to be made a party to, or is involved in any threatened, pending or completed action, suit or
proceeding by reason of the fact that such person is or was a director or officer of the Registrant, in the absence of willful
misconduct or negligence on the part of such person in connection with such person&rsquo;s performance of duties as a director
or officer, as the case may be, may be indemnified and held harmless by the Registrant to the fullest extent permitted by applicable
law. In addition, the Registrant has obtained an insurance policy which provides liability coverage, including coverage for liabilities
arising under the U.S. federal securities laws, for directors and officers and which contains certain exceptions and exclusions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 7.</TD><TD>Exemption from Registration Claimed</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 8.</TD><TD>Exhibits</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">EXHIBIT INDEX</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Exhibit
No.</B></P></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 88%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Description</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex0401.htm">4.1</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex0401.htm">Articles of Incorporation of the Registrant (English translation) (incorporating all amendments as of June 21, 2018).</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex0501.htm">5.1</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex0501.htm">Opinion of Lee and Li, ROC counsel to the Registrant, as to the legality of the securities being registered</A>.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex2301.htm">23.1</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex2301.htm">Consent of Deloitte &amp; Touche, independent registered public accounting firm.</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex0501.htm">23.2</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex0501.htm">Consent of Lee and Li (included in Exhibit 5.1).</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex2303.htm">23.3</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex2303.htm">Consent of PricewaterhouseCoopers, independent registered public accounting firm.</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="#a_001">24.1</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="#a_001">Power of Attorney (included in the signature pages hereof).</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><A HREF="dp102647_ex9901.htm">99.1</A></TD>
    <TD>&nbsp;</TD>
    <TD><A HREF="dp102647_ex9901.htm">ASE Technology Holding Co., Ltd. 2018 Employee Stock Option Plan (English translation).</A></TD></TR>
</TABLE>


<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>


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<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 9.</TD><TD>Undertakings</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
undersigned Registrant hereby undertakes:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
include any prospectus required by Section 10(a)(3) of the Securities Act;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
reflect in the prospectus any facts or events arising after the effective date of this Registration Statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set
forth in this Registration Statement;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">(iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
include any material information with respect to the Plan not previously disclosed in this Registration Statement or any material
change to such information in this Registration Statement;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>provided, however</I>, that paragraphs (a)(1)(i) and (a)(1)(ii)
do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports
filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference in this Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That,
for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
be deemed to be the initial bona fide offering thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To
remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the
termination of the offering.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing
of the Registrant&rsquo;s annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable,
each filing of an employee benefit plan&rsquo;s annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated
by reference in this Registration Statement shall be deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Insofar
as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant
of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURES</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Pursuant to the requirements of the Securities
Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in Taipei, Taiwan, Republic of China, on February 26, 2019.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">ASE TECHNOLOGY HOLDING CO., LTD.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 4%">By:</TD>
    <TD STYLE="width: 36%; border-bottom: Black 1pt solid">/s/ Jason C.S. Chang</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name:&#9;Jason C.S. Chang</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title:&#9;Chairman</TD></TR>
</TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><A NAME="a_001"></A>POWER OF ATTORNEY</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Know all persons by these presents, that
each person whose signature appears below, constitutes and appoints each of Jason C.S. Chang and Joseph Tung as his or her true
and lawful attorney-in-fact and agent, upon the action of such appointee, with full power of substitution and resubstitution, to
do any and all acts and things and execute, in the name of the undersigned, any and all instruments which each of said attorneys-in-fact
and agents may deem necessary or advisable in order to enable ASE Technology Holding Co., Ltd. to comply with the Securities Act
of 1933, as amended (the &ldquo;Securities Act&rdquo;), and any requirements of the Securities and Exchange Commission (the &ldquo;Commission&rdquo;)
in respect thereof, in connection with the filing with the Commission of this registration statement under the Securities Act,
including specifically but without limitation, power and authority to sign the name of the undersigned to such registration statement,
and any amendments to such registration statement (including post-effective amendments), and to file the same with all exhibits
thereto and other documents in connection therewith, with the Commission, to sign any and all applications, registration statements,
notices or other documents necessary or advisable to comply with applicable state securities laws, and to file the same, together
with other documents in connection therewith with the appropriate state securities authorities, granting unto each of said attorneys-in-fact
and agents full power and authority to do and to perform each and every act and thing requisite or necessary to be done in and
about the premises, as fully and to all intents and purposes as the undersigned might or could do in person, hereby ratifying and
confirming all that each of said attorneys-in-fact and agents may lawfully do or cause to be done by virtue hereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Pursuant to the requirements of the Securities
Act, this registration statement has been signed below by the following persons in the capacities and on the dates indicated.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 33%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Signature</B></P></TD>
    <TD STYLE="width: 44%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Title</B></P></TD>
    <TD STYLE="width: 23%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Date</B></P></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Jason C.S. Chang</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director, Chairman and Chief Executive Officer</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Jason C.S. Chang</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(principal executive officer)</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Richard H.P.
Chang</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director, Vice Chairman and President</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Richard H.P. Chang</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Bough Lin</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Bough Lin</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Chi-Wen Tsai</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Chi-Wen Tsai</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Rutherford Chang</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Rutherford Chang</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Tien Wu</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director, Chief Operating Officer</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Tien Wu</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Joseph Tung</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director and Chief Financial Officer</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Joseph Tung</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(principal financial officer)</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Raymond Lo</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Raymond Lo</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Tien-Szu Chen</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Tien-Szu Chen</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Jeffrey Chen</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Management Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Jeffrey Chen</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Shen-Fu Yu</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Independent Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shen-Fu Yu</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Ta-Lin Hsu</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Independent Director</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Ta-Lin Hsu</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>

<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 33%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Mei-Yueh Ho</P></TD>
    <TD STYLE="width: 44%; text-align: center"><FONT STYLE="font-size: 10pt">Independent Director</FONT></TD>
    <TD STYLE="width: 23%; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Mei-Yueh Ho</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: Black 0.5pt solid">/s/ Murphy Kuo</P></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Controller and Vice President </FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 26, 2019</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-size: 10pt">Murphy Kuo</FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(principal accounting officer)</FONT></TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURE OF AUTHORIZED REPRESENTATIVE
OF THE REGISTRANT</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Pursuant to the Securities Act of 1933,
as amended, the undersigned, the duly authorized representative in the United States of the registrant, has signed this registration
statement or amendment thereto in Newark, Delaware, on <FONT STYLE="font-size: 10pt">February 26</FONT>, 2019.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

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    <TD>&nbsp;</TD>
    <TD COLSPAN="2">PUGLISI &amp; ASSOCIATES</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 4%">By:</TD>
    <TD STYLE="width: 36%; border-bottom: Black 1pt solid">/s/ Donald J. Puglisi</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name: Donald J. Puglisi</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title: Managing Director</TD></TR>
</TABLE>

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[{"type": "S-8", "sequence": "1", "filename": "dp102647_s8.htm", "description": "FORM S-8", "secsgml_size_bytes": 54022}]
{"company-data": {"conformed-name": "ASE Technology Holding Co., Ltd.", "cik": "0001122411", "assigned-sic": "3674", "irs-number": "000000000"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-229860", "film-number": "19631526"}, "business-address": {"street1": "26 CHIN THIRD ROAD", "street2": "NANTZE EXPORT PROCESSING ZONE", "city": "KAOHSIUNG TAIWAN", "state": "F5", "zip": "00000", "phone": "886-7-361-7173"}, "mail-address": {"street1": "26 CHIN THIRD ROAD", "street2": "NANTZE EXPORT PROCESSING ZONE", "city": "KAOHSIUNG TAIWAN", "state": "F5", "zip": "00000"}, "former-company": [{"former-conformed-name": "ASE Industrial Holding Co., Ltd.", "date-changed": "20180430"}, {"former-conformed-name": "ADVANCED SEMICONDUCTOR ENGINEERING INC", "date-changed": "20000822"}]}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
ASE Technology
Holding Co., Ltd.
(Exact name of registrant as specified in its charter)
Republic of China
(State or other jurisdiction of incorporation or organization)
N/A
(I.R.S. Employer Identification No.)
26 Chin Third Road
Nantze Export Processing Zone
Nantze, Kaohsiung, Taiwan
Republic of China
(Address of Principal Executive Offices)
ASE Technology
Holding Co., Ltd. 2018 Employee Stock Option Plan
(Full Title of the Plan)
C T Corporation System
111 Eighth Avenue
New York, New York 10011
(212) 590-9070
(Name, address and telephone number, including area
code, of agent for service)
Copy to:
James C. Lin, Esq.
Davis Polk & Wardwell LLP
c/o 18th Floor, The Hong Kong Club Building
3A Chater Road
Hong Kong
(852) 2533-3300
Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions
of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging
growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
☒
Accelerated filer
☐
Non-accelerated filer
☐
(Do not check if a smaller reporting company)
Smaller reporting company
☐
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the
registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
provided pursuant to Section 7(a)(2)(B) of the Securities Act.
☐
CALCULATION OF REGISTRATION FEE
Title
of securities to be registered
Amount
to be registered
(1)
Proposed
maximum offering
price per share
Proposed
maximum aggregate
offering price
Amount
of
registration fee
(5)
Common Shares, par value NT$10.00 per share
131,862,500
(2)
US$1.84
(2)
US$242,627,000
US$29,406.39
17,517,500
(3)
US$1.99
(3)
US$34,859,825
US$4,225.01
TOTAL
150,000,000
(4)
US$277,486,825
US$33,631.40
Notes:
(1)
This Registration Statement on Form S-8 (this "Registration Statement") covers Common Shares, par value NT$10.00
per share (the "Shares") of ASE Technology Holding Co., Ltd. (the "Company" or the "Registrant")
(i) issuable pursuant to the ASE Technology Holding Co., Ltd. 2018 Employee Stock Option Plan (the "Plan") and (ii)
pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), any additional Shares
that become issuable under the Plan by reason of any stock dividend, stock split, or other similar transaction.
(2)
These Common Shares to be registered represent shares of currently outstanding options under the Plan. The per share and
                                                            aggregate offering prices are estimated pursuant to Rule 457(h) under the Securities Act solely for the purpose of
                                                            calculating the amount of the registration fee, based on NT$
56.4
, which is the
                                                            exercise price of options already granted. For the purpose of calculating the per share and aggregate offering prices, New
                                                            Taiwan dollar amounts were translated into U.S. dollars at a rate of NT$30.71 to US$1.00, the exchange rate as set forth
                                                            in the H.10 weekly statistical release of the Federal Reserve System of the United States on February 22, 2019.
(3)
These Common Shares to be registered are reserved for future grants
under the Plan. The per share and aggregate offering prices are estimated pursuant to Rule 457(h) under the Securities Act solely
for the purpose of calculating the amount of the registration fee, based on the average of the high price of NT$62.3 and the low
price of NT$60.0 of the Registrant's Common Shares reported on the Taiwan Stock Exchange on February 25, 2019, in accordance
with Rule 457(c) under the Securities Act. For the purpose of calculating the per share and aggregate offering prices, New Taiwan
dollar amounts were translated into U.S. dollars at a rate of NT$30.71 to US$1.00, the exchange rate as set forth in the H.10
weekly statistical release of the Federal Reserve System of the United States on February 22, 2019.
(4)
This total amount includes 620,000 shares that are not listed above because the Company has canceled these shares and
                                                            will not reserve these shares for future grants.
(5)
Rounded up to the nearest penny.
PART I
INFORMATION REQUIRED IN THE SECTION
10(a) PROSPECTUS
Information required by Item 1 and Item
2 of Part I to be contained in the Section 10(a) prospectus is omitted from this Registration Statement in accordance with the
provisions of Rule 428 under the Securities Act and the introductory note to Part I of Form S-8. The documents containing the information
specified in Part I have been or will be delivered to the participants in the Plan as required by Rule 428(b). These documents,
which include the statement of availability required by Item 2 of Part I, and the documents incorporated by reference in this Registration
Statement pursuant to Item 3 of Part II, taken together, constitute a prospectus that meets the requirements of Section 10(a) of
the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION
STATEMENT
Item 3.
Incorporation of Documents by Reference
The following documents of the Registrant
filed with the Securities and Exchange Commission (the "Commission") are incorporated herein by reference:
(a)
the annual report on Form 20-F under the Securities Exchange Act of 1934, as amended (the "Exchange Act") for Advanced
Semiconductor Engineering, Inc. ("ASE"), the predecessor company of the Registrant, for the fiscal year ended December
31, 2017 filed with the Commission on March 28, 2018; and
(b)
the description of common shares and American depositary shares of the Registrant contained under the headings "Description
of HoldCo Common Shares" and "Description of HoldCo American Depositary Shares" in ASE's registration statement
on Form F-4 (File No. 333-214752) filed with the Commission on January 16, 2018, including any amendment or report filed for the
purpose of updating such description.
In addition, all documents subsequently
filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a post-effective
amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining
unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing
of such documents.
Any statement contained herein or in a
document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes
hereof or of the related prospectus to the extent that a statement contained herein, (or in any other subsequently filed document
which is also incorporated or deemed to be incorporated by reference herein), modifies or supersedes such statement. Any such statement
so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
Item 4.
Description of Securities
Not applicable.
Item 5.
Interests of Named Experts and Counsel
Not applicable.
Item 6.
Indemnification of Directors and Officers
The relationship between the Registrant
and its directors and officers is governed by the Republic of China ("ROC") Civil Code, the ROC Company Law and the
Registrant's Articles of Incorporation. There is no written contract between the Registrant and its directors and officers
governing the rights and obligations of such parties. Under Section 10, Chapter 2, Book II of the ROC Civil Code, each person who
was or is a party or is threatened to be made a party to, or is involved in any threatened, pending or completed action, suit or
proceeding by reason of the fact that such person is or was a director or officer of the Registrant, in the absence of willful
misconduct or negligence on the part of such person in connection with such person's performance of duties as a director
or officer, as the case may be, may be indemnified and held harmless by the Registrant to the fullest extent permitted by applicable
law. In addition, the Registrant has obtained an insurance policy which provides liability coverage, including coverage for liabilities
arising under the U.S. federal securities laws, for directors and officers and which contains certain exceptions and exclusions.
Item 7.
Exemption from Registration Claimed
Not applicable.
Item 8.
Exhibits
EXHIBIT INDEX
Exhibit
No.
Description
4.1
Articles of Incorporation of the Registrant (English translation) (incorporating all amendments as of June 21, 2018).
5.1
Opinion of Lee and Li, ROC counsel to the Registrant, as to the legality of the securities being registered
.
23.1
Consent of Deloitte & Touche, independent registered public accounting firm.
23.2
Consent of Lee and Li (included in Exhibit 5.1).
23.3
Consent of PricewaterhouseCoopers, independent registered public accounting firm.
24.1
Power of Attorney (included in the signature pages hereof).
99.1
ASE Technology Holding Co., Ltd. 2018 Employee Stock Option Plan (English translation).
Item 9.
Undertakings
(a)       The
undersigned Registrant hereby undertakes:
(1)       To
file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:
(i)       To
include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii)       To
reflect in the prospectus any facts or events arising after the effective date of this Registration Statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set
forth in this Registration Statement;
(iii)       To
include any material information with respect to the Plan not previously disclosed in this Registration Statement or any material
change to such information in this Registration Statement;
provided, however
, that paragraphs (a)(1)(i) and (a)(1)(ii)
do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports
filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference in this Registration Statement.
(2)       That,
for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
be deemed to be the initial bona fide offering thereof.
(3)       To
remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the
termination of the offering.
(b)       The
undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing
of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable,
each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated
by reference in this Registration Statement shall be deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)       Insofar
as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant
of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.
SIGNATURES
Pursuant to the requirements of the Securities
Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in Taipei, Taiwan, Republic of China, on February 26, 2019.
ASE TECHNOLOGY HOLDING CO., LTD.
By:
/s/ Jason C.S. Chang
Name:	Jason C.S. Chang
Title:	Chairman
POWER OF ATTORNEY
Know all persons by these presents, that
each person whose signature appears below, constitutes and appoints each of Jason C.S. Chang and Joseph Tung as his or her true
and lawful attorney-in-fact and agent, upon the action of such appointee, with full power of substitution and resubstitution, to
do any and all acts and things and execute, in the name of the undersigned, any and all instruments which each of said attorneys-in-fact
and agents may deem necessary or advisable in order to enable ASE Technology Holding Co., Ltd. to comply with the Securities Act
of 1933, as amended (the "Securities Act"), and any requirements of the Securities and Exchange Commission (the "Commission")
in respect thereof, in connection with the filing with the Commission of this registration statement under the Securities Act,
including specifically but without limitation, power and authority to sign the name of the undersigned to such registration statement,
and any amendments to such registration statement (including post-effective amendments), and to file the same with all exhibits
thereto and other documents in connection therewith, with the Commission, to sign any and all applications, registration statements,
notices or other documents necessary or advisable to comply with applicable state securities laws, and to file the same, together
with other documents in connection therewith with the appropriate state securities authorities, granting unto each of said attorneys-in-fact
and agents full power and authority to do and to perform each and every act and thing requisite or necessary to be done in and
about the premises, as fully and to all intents and purposes as the undersigned might or could do in person, hereby ratifying and
confirming all that each of said attorneys-in-fact and agents may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities
Act, this registration statement has been signed below by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/ Jason C.S. Chang
Management Director, Chairman and Chief Executive Officer
February 26, 2019
Jason C.S. Chang
(principal executive officer)
/s/ Richard H.P.
Chang
Management Director, Vice Chairman and President
February 26, 2019
Richard H.P. Chang
/s/ Bough Lin
Management Director
February 26, 2019
Bough Lin
/s/ Chi-Wen Tsai
Management Director
February 26, 2019
Chi-Wen Tsai
/s/ Rutherford Chang
Management Director
February 26, 2019
Rutherford Chang
/s/ Tien Wu
Management Director, Chief Operating Officer
February 26, 2019
Tien Wu
/s/ Joseph Tung
Management Director and Chief Financial Officer
February 26, 2019
Joseph Tung
(principal financial officer)
/s/ Raymond Lo
Management Director
February 26, 2019
Raymond Lo
/s/ Tien-Szu Chen
Management Director
February 26, 2019
Tien-Szu Chen
/s/ Jeffrey Chen
Management Director
February 26, 2019
Jeffrey Chen
/s/ Shen-Fu Yu
Independent Director
February 26, 2019
Shen-Fu Yu
/s/ Ta-Lin Hsu
Independent Director
February 26, 2019
Ta-Lin Hsu
/s/ Mei-Yueh Ho
Independent Director
February 26, 2019
Mei-Yueh Ho
/s/ Murphy Kuo
Controller and Vice President
February 26, 2019
Murphy Kuo
(principal accounting officer)
SIGNATURE OF AUTHORIZED REPRESENTATIVE
OF THE REGISTRANT
Pursuant to the Securities Act of 1933,
as amended, the undersigned, the duly authorized representative in the United States of the registrant, has signed this registration
statement or amendment thereto in Newark, Delaware, on
February 26
, 2019.
PUGLISI & ASSOCIATES
By:
/s/ Donald J. Puglisi
Name: Donald J. Puglisi
Title: Managing Director