Metrolab Internacional, S.A. de C.V.

Xiangzhou China Chemical (Yangzhou) produces chemical reagents for 20 years, developing raw materials, medicinal intermediates, food additives, and laboratory products using Xuzhou Chemical Institute's technology.

Schäfter + Kirchhoff, an optics engineering firm, was founded 50 years ago.

Various biochemical tests including HPLC, LC-MS, and small molecular compound testing.