Proingas S.A.

Banknotes embody a nation's history and culture, needing customized technical solutions in collaboration with customers.

Shanghai Yongzeng Chemical Co., Ltd., established in 2008, offers factory prices and supplies chemicals like 2,2'-bipyridine and 4,4'-bipyridine in Jiangsu, Nantong, and Zhangjiagang.

A H Marks and Company is the UK's largest private chemical manufacturer, with over 300 employees at a 11-hectare site near Bradford.