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Shin-Etsu Polymer Co., Ltd.Aronkasei Co., Ltd.Friedrich Grohe AGXinxing Ductile Iron Pipes Co., Ltd.Kitagawa Industries Co., Ltd.Geberit International AGRehrig Pacific Co.Geberit AGGuangdong Liansu Technology Industrial Co., Ltd.Guangdong Liansu Technology Industrial Co., Ltd.Nihon Yamamura Glass Co., Ltd.Berry Plastics Holding Corp.Hebei Construction Group Co. Ltd.USG Interiors LLCMueller Co.Mueller Co.Schoeller PlastOnda Mfg Co., Ltd.Hoogovens Aluminium BvMaezawa Kasei Industries Co., Ltd.Kubota ChemiX Co., Ltd.Mexichem Amanco Holding SA de CVSTI, Inc.Zhejiang Wanma Co., Ltd.Zhejiang Weixing New Building Materials Co., Ltd.Era Co., Ltd.OMNOVA Solutions, Inc.Era Co., Ltd.Viega LLCBerry Global, Inc.
Baoshan Iron & Steel Co., Ltd.Baoshan Iron & Steel Co., Ltd.Kurimoto Ltd.Aishida Co., Ltd.Elkem ASAXinxing Ductile Iron Pipes Co., Ltd.WMF AGCia Roca Radiadores SAAmerican Safety Razor Co.HBIS Group Co., Ltd.United States Pipe & Foundry Co. LLCMetso Minerals Industries, Inc.Buderus AGNippon Chuzo KKNippon Koshuha Steel Co., Ltd.Sun Electric CorpSun Electric CorpKapro Industries Ltd.WKI Holding Co., Inc.Toyo Denka Kogyo Co., Ltd.American Cast Iron Pipe Co.Koehler Manufacturing Co.Kolbenschmidt Pierburg Shanghai Nonferrous Components Co., LtdChina BaoWu Steel Group Corp. Ltd.Société d'Exploitation Tarrerias BonjeanHUA Dong Teksid Automotive Foundry Co., Ltd.SKF Mekan ABEisenwerk Brühl GmbHFlex-Seal Couplings Ltd.Aurubis AG
LG Chem Ltd.Shin-Etsu Chemical Co., Ltd.The Lubrizol Corp.Milliken & Co. (South Carolina)Borealis AGAsahi Kasei Chemicals Corp.Shin-Etsu Polymer Co., Ltd.Polyplastics Co., Ltd.Arkema France SAAronkasei Co., Ltd.Univation Technologies LLCSaudi Basic Industries Corp.Total Petrochemicals & Refining USA, Inc.Mitsubishi Engineering-Plastics Corp.Mitsubishi Engineering-Plastics Corp.Elf Atochem North America, Inc.Occidental Chemical Corp.Fukuvi Chemical Industry Co., Ltd.Sakai Chemical Industry Co., Ltd.Milacron LLCNan Ya Plastics Corp.Velsicol Chemical Corp.LOTTE Advanced Materials Co., Ltd.KraussMaffei Technologies GmbHChi Mei Corp.Solvay Specialty Polymers USA LLCLucite International UK Ltd.ALPLA Werke Alwin Lehner GmbH & Co. KGLamberti SpAHanwha Total Petrochemical Co., Ltd.
Kubota Corp.Shin-Etsu Polymer Co., Ltd.Kurimoto Ltd.Xinxing Ductile Iron Pipes Co., Ltd.Wuhu Xinxing Ductile Iron Pipes Co., Ltd.Wuhu Xinxing Ductile Iron Pipes Co., Ltd.Vallourec SAUnited States Pipe & Foundry Co. LLCZhejiang Zhongcai Pipes Science & Technology Co. Ltd.Supreme Industries Ltd.Huangshi Xinxing Pipes Co., Ltd.Mercury Plastics LLCSaint-Gobain Construction Products UK Ltd.The Ford Meter Box Co., Inc.North American Pipe Corp.Kuo Toong International Co., Ltd.Perma-Pipe, Inc.Prinsco, Inc.Walter Coke, Inc.Jindal SAW Ltd.CANTEX, Inc.Electrosteel Castings Ltd.HOBAS Engineering + Rohre AGAsahi/America, Inc.USP Holdings, Inc.Northwest Pipe Co.Prime Conduit, Inc.Star Pipe Products Ltd.
Sekisui Chemical Co., Ltd.Elf Atochem North America, Inc.Kubota ChemiX Co., Ltd.Advanced Drainage Systems, Inc.NIBCO, Inc.Oatey Co.Shanghai Chlor-Alkali Chemical Co., Ltd.Philmac Pty Ltd.Shanghai Chlor-Alkali Chemical Co., Ltd.Vinidex Pty Ltd.Supreme Industries Ltd.National Plastics, Inc.VESTOLIT GmbHUniflex Technology, Inc.North American Pipe Corp.SIMONA AGChina General Plastics Corp.Ashirvad Pipes Pvt Ltd.Royal Building Products (USA), Inc.RX Plastics Ltd.Iplex Pipelines Australia Pty Ltd.Hangzhou Electrochemical Group Co. Ltd.Taiyo Vinyl Corp.Cepex SADPI Plastics Pty Ltd.Asung Plastic Ind Co. Ltd.Golan Plastic Products Ltd.Hangjin Technology Co., Ltd.Aqua-Q ABWeld-On Adhesives, Inc.
Polyplastics Co., Ltd.Wanhua Chemical Group Co., Ltd.Mitsubishi Engineering-Plastics Corp.Mitsubishi Engineering-Plastics Corp.LOTTE Advanced Materials Co., Ltd.Von Roll Holding AGChi Mei Corp.Teijin Chemicals Ltd.Techno-UMG Co. Ltd.Shanghai Kumho Sunny Plastics Co. Ltd.Sumika Polycarbonate Ltd.Luxi Chemical Group Co., Ltd.Taimide Tech, Inc.OthersFLEXcon Co., Inc.National Plastics, Inc.Ningbo Zhetie Daphoon Chemical Co., Ltd.LX MMA Corp.Kuraray America, Inc.Shandong Ruifeng Chemical Co. Ltd.Uniflex Technology, Inc.Jiangsu Huaxin New Material Co., Ltd.Chemtura Organometallics GmbHAristech Acrylics LLCBASF Polyurethanes GmbHAlbis Plastic GmbHGuangdong Shunde Shunyan New Material Co., Ltd.Polynt SpAKRAIBURG TPE GmbH & Co. KGGolee Co., Ltd.
E.I. du Pont de Nemours & Co.EIDP, Inc.Sumitomo Chemical Co., Ltd.Toray Industries, Inc.LG Chem Ltd.Mitsui Chemicals, Inc.Asahi Kasei Corp.Teijin Ltd.DIC CorporationToyobo Co., Ltd.Koninklijke DSM NVIdemitsu Kosan Co., Ltd.YKK Corp.UBE Corp.Sumitomo Bakelite Co., Ltd.Daicel Corp.YKK Corp.Kureha Corp.The Lubrizol Corp.Kansai Paint Co., Ltd.Sekisui Kasei Co., Ltd.Asahi Kasei Chemicals Corp.Polyplastics Co., Ltd.Saudi Basic Industries Corp.KUMHO TIRE Co., Inc.Huntsman International LLCTotal Petrochemicals & Refining USA, Inc.Wanhua Chemical Group Co., Ltd.Piaggio & C SpAPiaggio & C SpA