Welch Materials is a multinational company that develops and manufactures chromatography consumables including analytical and preparative HPLC columns, SPE columns, GC columns, bulk packing materials, and protein purification products. Welch Materials was established in 2003 at Shanghai, China and Welch Materials (Zhejiang) was opened in 2011 at Jinhua, Zhejiang, China. Welch has established operations at Welch Materials, Inc., at West Haven, CT, USA and Welch Materials, India PVT. Ltd., at Gurgaon. Welch strength lies in our deep experience in particle surface modification science. We are experts in bonding chemistry and innovative packing materials for chromatography applications. Utilizing and optimizing our resources, we have developed many innovative products including five series of HPLC columns including Ultisil®, Welchrom®, Xtimate®, Topsil®, and Boltimate™ and market and support these products on worldwide basis.