USA
Metallurgical Solutions North America
Corporate Office
300 Corporate Parkway-118N
Amherst, NY 14226

USA
Affival New Kensington Plant
210 14th St
New Kensington, PA 15068

USA
OPTA Adrian Plant
545 Industrial Drive
Adrian, MI 49221

USA
OPTA Birmingham Plant
5000 Commerce Ave
Irondale, AL 35210

USA
OPTA East Chicago Plant
5222 Indianapolis Blvd
East Chicago, IN 46312

USA
OPTA Kingsbury Plant
5th Road Building #4
Kingsbury, IN  46345

USA
OPTA Keeseville Plant
Keeseville Plant
56 Industrial Park Rd
Keeseville, NY 12944

USA
OPTA Milan Plant
345 E Main St.
Milan, MI 48160

USA
OPTA Myoma Plant
130 Myoma Road
Mars, PA 16046

USA
OPTA Turtle Creek Plant
938 Larimer Ave
Turtle Creek, PA 15145

USA
OPTA Walkerton Plant
205 Laporte Trail
Walkerton, IN 46574

USA
OPTA Warren Plant
101 Tidewater St NE
Warren, OH 44483

USA
Carbide Industries
Corporate Office
4400 Bells Lane
Louisville, KY 40216

USA
Carbide Industries Calvert City Plant
3204 Industrial Parkway
Calvert City, KY 42029

USA
OPTA Process Technology Group
689 Sugar Ln
Elyria, OH 44035

USA
QUAB Chemicals
Corporate Office
300 Corporate Parkway-118N
Amherst, NY 14226

USA
QUAB Chemicals Mobile Plant
4201 Degussa Road
Theodore, AL 36582

Canada
Opta Group
Corporate Office
104–3027 Harvester Rd
Burlington, ON L7N 3G7

Canada
OPTA Nanticoke Plant
1010 Haldimand Road 3
Nanticoke, ON N0A 1L0

Canada
OPTA Regina Plant
2111 Industrial Dr
Regina, SK S4R 8R7

Canada
OPTA Selkirk Plant
510 Mercy St
Selkirk, MB R1A 1Z9

Canada
OPTA Stoney Creek Plant
871 Arvin Avenue
Stoney Creek, ON L8E 5N8

Canada
OPTA Glass Waterdown Plant
407 Parkside Dr
Waterdown, ON L0R 2H0

Opta Group Latin America

Brazil
Tecnosulfur S.A. Sete Lagoas
Corporate Office & Plant
Rua Primeiro de Junho,
2000 – Vale das Palmeiras
Sete Lagoas – Minas Gerais – Brazil

Brazil
Tecnosulfur S.A. Volta Redonda Plant
Rua: Paulo de Frontin, 590 Sala 508 – Aterrado
Volta Redonda – Rio de Janeiro – Brazil

Mexico
Affival/Affimex Manzanillo
Corporate Office & Plant
Km 3.5 carretera Manzanillo – Minatitlan
Colonia Industrial Tapeixtles CP 28239
Manzanillo, Colima, Mexico

Opta Group Europe (includes Middle East and Africa)

France
Affival SAS Solesmes
Corporate Office & Plant
70, Rue de l’Abbaye
Boîte Postale 10022,
59730 Solesmes, France

Germany
Stahl-Metallurgie Holding GmbH
Prinzregentenstraße 68
81675 München, Germany

Germany
Stahl-Metallurgie GmbH
Rathausplatz 11
84579 Unterneukirchen, Germany

Germany
OPTA Wesel Plant
Werner-von-Siemens-Str. 11
46485 Wesel, Germany

Slovakia
OPTA Košice Plant
Vstupny areal U. S. Steel
Kosice, Slovakia 04454

Türki̇ye
OPTA Türki̇ye Plant
Keçiliköy OSB Mah, Zeki Şairoğlu Cad, No:9,
Manisa OSB 4. Kısım,
45030, Manisa, Türki̇ye

Opta Group Asia

India
Affival Raipur Plant
Block R VS Logistics Park
Tulsi Baradera Road
Ring Rd Number 3
Raipur, Chhattisgarh 493195

Japan
Affival Tokyo
Corporate Office
Tamaki bldg. 2-15-17
Shimbashi, Minato-ku
Tokyo, Japan 105-0004

South Korea
Affival Dangjin Plant
23 Daechen 2 GIL, Soonsenong-Myeon
Dangjin-Si, Chungcheongnman-Do

Corporate Office
105 Bongeunsa-Ro, Gangnam-Gu
Seoul, Korea