Hongchang International. 

Heyu Biological Technology Corporation, together with its subsidiaries, engages in research, development, and manufacturing of healthcare equipment. It is currently focused on developing Submillimeter Wave (Terahertz) Quantized Space Therapy Chamber, a medical equipment designed to treat cancer through cold nuclear fusion caused by cosmic ray muons in an enclosed chamber. The company was formerly known as Pacific WebWorks, Inc. and changed its name to Heyu Biological Technology Corporation in June 2018. Heyu Biological Technology Corporation was incorporated in 1987 and is based in Xiamen, the People's Republic of China.