Quality Raw Materials Found, Sourced and Delivered. Zexi USA, LLC is a distributor of high quality photo-initiator and titanium products. The parent company, Chengdu Zexi Chemical Co. Ltd., was established in Chengdu, China in 2002. The Zexi Group of companies, with more than 18 years of growth and success, has offices or affiliated companies in Chongqing, Shanghai, Guangzhou, Hong Kong, and Maryland USA. Zexi Group has, and continues to focus on building, an international supply platform of some of the highest quality and highest efficiency photo-initiator and titanium products in the world. Our close relationships, with very well known and respected Chinese manufacturers of photo-initiator and titanium dioxide brands, insure that we can deliver products in a timely fashion. We also provide technical support and logistic services for domestic and international customers. Clearly our quality and commitment to customer service has lead to longstanding relationships with customers such as Akzo Nobel Coating and Tuozhan Ink. Zexi USA, LLC is an extension of our success, forward thinking, and commitment to bringing a stable and reliable supply of photo-initiator and Tio2 to all of our current and future customers around the world.