1.The Linde Group
2.MESA International Technologies Inc.
3.The Dow Chemical Company
4.BASF SE
5.Seidler Chemical Company
6.Tokyo Chemical Industry (TCI) Company Limited
7.Puyer (Nantong) Biopharma Co. Ltd.
8.Saudi Basic Industries Corporation (SABIC)
9.Westlake Chemical Corporation
10.Occidental Petroleum Corporation (OXY)