"It's time to think big!" —Clyde Mardon[src] This article is a stub. You can help expand the article by adding some information.Please be sure to edit in accordance to our Manual of Style. BTHK Biotech is a biotechnology company located in Hong Kong. Appearances Arrow Season 3 "The Climb" Retrieved from "https://arrow.fandom.com/wiki/BTHK_Biotech?oldid=85767" Categories: Article stubs Companies Community content is available under CC-BY-SA unless otherwise noted.