-5N plus
-Antraco Chemie-Handelges.mbh
-Ar Metal San. Ve Tic. Ltd. ti
-BASF Pigment GmbH
-Campine N.V.
-CHEMICO SYNTHETICS LTD
-Chemtura Manufacturing UK Limited
-CINCOPMR
-Comsup Commodities Inc.
-Deutsche Rohstoffagentur DERA (BGR)
-Dongguan Guanwei Trading Co., Ltd.
-Emsa Tecnologia Quimica S.A.
-Everkem S.R.L.
-Fam International Co., Ltd.
-Fantastic Metal Products Co., Ltd
-First Liberty Power Corp
-GMS Chemie-Handelsgesellschaft mbH
-GPM Chemicresource LLC
-Hallgarten & Company
-Helm AG
-Hillgrove Mines Pty Ltd.
-IMR-Rohstoffhandel
-International Antimony Association
-Itaca SA
-Jiangxi Tonggu Eryuan Chemical Co., Ltd
-Lambert Metals International Ltd
-Matrix (guangzhou) chemicals Co.,Ltd
-Nihon Seiko Co., Ltd
-Oman Investment Fund
-Pacific Materials Co., Ltd
-Penox SA (Group Holding)
-PT. BARA CIPTA NUGRAHA
-Quimialmel Italia SpA
-RJH Trading Limited
-Roskill Information Services Ltd.
-Rusant Limited
-S. Goldmann GmbH Co. KG
-Scandinavian Steel AB
-Serge Ferrari
-SICA SAS
-Sociedad Minera Illayux
-St. Louis Group
-Trademet SA
-Traxys Metales y Químicos S.L.
-Tri-Star Resources Plc
-Umbono Capital Projects Gmbh
-Umicore SA NV
-Voyager Group
-Xinshao Xinxing Antimony Industry Co., Ltd.
