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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.USG Interiors LLCMueller Co.Mueller Co.Schoeller PlastOnda Mfg Co., Ltd.Maezawa Kasei Industries 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.Colder Products Co.Exel Composites OyjExel Composites Oyj
Baoshan Iron & Steel Co., Ltd.Baoshan Iron & Steel Co., Ltd.Kurimoto Ltd.Aishida Co., Ltd.Elkem ASAXinxing Ductile Iron Pipes Co., Ltd.Cia Roca Radiadores SAAmerican Safety Razor Co.Japan Engine Corp.HBIS Group Co., Ltd.United States Pipe & Foundry Co. LLCBradken Resources Pty Ltd.Metso Minerals Industries, Inc.Buderus AGNippon Koshuha Steel Co., Ltd.BALMUDA, Inc.Sun Electric CorpSun Electric CorpKapro Industries Ltd.WKI Holding Co., Inc.Kanto Special Steel Works Ltd.Toyo Denka Kogyo Co., Ltd.Romi SAKoehler Manufacturing Co.Thomas Dudley Ltd.Koehler Manufacturing Co.Kolbenschmidt Pierburg Shanghai Nonferrous Components Co., LtdKolbenschmidt Pierburg Shanghai Nonferrous Components Co., LtdChina BaoWu Steel Group Corp. Ltd.Société d'Exploitation Tarrerias Bonjean
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 LLCTotal 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.Japan Polypropylene Corp.KraussMaffei Technologies GmbHChi Mei Corp.Solvay Specialty Polymers USA LLCLucite International UK Ltd.ALPLA Werke Alwin Lehner GmbH & Co. KGHanwha Total Petrochemical Co., Ltd.Teijin Chemicals Ltd.Braskem SA
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. LLCAdvanced Drainage Systems, Inc.Zhejiang Zhongcai Pipes Science & Technology Co. Ltd.American Cast Iron Pipe Co.Hebei Xinxing Ductile Iron Pipes Co. Ltd.Supreme Industries Ltd.Huangshi Xinxing Pipes Co., Ltd.Huangshi Xinxing Pipes Co., Ltd.Saint-Gobain Construction Products UK Ltd.The Ford Meter Box Co., Inc.North American Pipe Corp.Kuo Toong International Co., Ltd.Prinsco, Inc.Perma-Pipe, Inc.Suns Pipelines Co., Ltd.Walter Coke, Inc.Jindal SAW Ltd.CANTEX, Inc.Electrosteel Castings Ltd.HOBAS Engineering + Rohre AGAsahi/America, Inc.USP Holdings, Inc.Northwest Pipe Co.
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.VESTOLIT GmbHNational Plastics, Inc.North American Pipe Corp.Ashirvad Pipes Pvt Ltd.China General Plastics Corp.RX Plastics Ltd.Westlake Royal Building Products (USA), Inc.Hangzhou Electrochemical Group Co. Ltd.Iplex Pipelines Australia Pty Ltd.Taiyo Vinyl Corp.Cepex SADPI Plastics Pty Ltd.Asung Plastic Ind Co. Ltd.Golan Plastic Products Ltd.Hangjin Technology Co., Ltd.Aqua-Q ABSIMONA AGWeld-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.Nippon A&L, Inc.Techno-UMG Co. Ltd.Shanghai Kumho Sunny Plastics Co. Ltd.Sumika Polycarbonate Ltd.Luxi Chemical Group Co., Ltd.Taimide Tech, Inc.OthersFLEXcon Co., Inc.Vinidex Pty Ltd.Shandong Ruifeng Chemical Co. Ltd.Ningbo Zhetie Daphoon Chemical Co., Ltd.Ningbo Zhetie Daphoon Chemical Co., Ltd.LX MMA Corp.Kuraray America, Inc.National Plastics, Inc.Uniflex Technology, Inc.Jiangsu Huaxin New Material Co., Ltd.Jiangsu Huaxin New Material Co., Ltd.Aristech Acrylics LLCBASF Polyurethanes GmbHGuangdong Shunde Shunyan New Material Co., Ltd.Polynt SpA
BASF SEE.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.Idemitsu Kosan Co., Ltd.YKK Corp.UBE Corp.Sumitomo Bakelite Co., Ltd.Daicel Corp.YKK Corp.Kureha Corp.The Lubrizol Corp.Kansai Paint Co., Ltd.Nippon Paint Holdings Co., Ltd.Sekisui Kasei Co., Ltd.Asahi Kasei Chemicals Corp.Polyplastics Co., Ltd.Total Petrochemicals & Refining USA, Inc.Wanhua Chemical Group Co., Ltd.Piaggio & C SpAPiaggio & C SpAMitsubishi Engineering-Plastics Corp.Mitsubishi Engineering-Plastics Corp.