Industrial land under construction.
See https://accolade.eu/en/news/384/further-investment-for-the-karlovy-vary-region-new-industrial-park-will-host-leading-production-facilities-for-silicone-elastomers
and
https://accolade.eu/en/news/416/construction-of-new-park-karlovy-vary-commences-the-modern-industrial-zone-to-serve-as-a-manufacturing-site-for-wacker