CHINA JUSHI CO. LTD. (CHINA NATIONAL BUILDING MATERIAL CO. LTD.)
CHONGQING POLYCOMP INTERNATIONAL CORP.
GLASSTEX FIBERGLASS MATERIALS CORP.
JOHNS MANVILLE (BERKSHIRE HATHAWAY INC.)
NIPPON ELECTRIC GLASS CO. LTD.
OWENS CORNING
PFG FIBER GLASS CORP. (NAN-YA-PLASTICS)
SAINT-GOBAIN (VETOTREX)
TAISHAN GLASS FIBER INC.
XINGTAI JINNIU GLASS FIBER CO. LTD.