Aceros Lozano S.A. de C.V.

Specified Services   AISC Fracture Critical Endorsement Doc Preparation & Creation Onsite Assessment Aceros Lozano S.A. de C.V. Carr. San roque 502 Cd. Benito Juarez N.L. P: 81 8127 9000 F: 81 8326 1709 Contact Jose Santos Guerra Herrera Gerencia de Aseguramiento de Calidad

American Agencies Co., Inc.

Specified Services   AISC Steel Building Structures Doc Preparation & Creation Onsite Assessment American Agencies Co., Inc. Old State Road No. 1, Bldg. 1554 Sector El Cinco Río Piedras, Puerto Rico 00927 Contact George Vendrell

Acero Estrella

Specified Services   AISC Steel Building Structures Doc Preparation & Creation Onsite Assessment Monthly Executive Management Assistance Acero Estrella Autopista Duarte KM13 Santiago, Dominican Republic 33166-6505 P: (809) 247-3434 F: (809) 247-3770 Contact Manuel Genao Vice President

Horta Coslada Construcciones Metálicas, S.L.

Specified Services   AISC Steel Bridges Fracture Critical Sophisticated Paint Endorsement Doc Preparation & Creation Onsite Assessment World Trade Center Transportation Hub Assistance CWI Management & Consultation Horta Coslada Construcciones Metálicas, S.L. Pgno. Ind. Sabón, parcelas 92-94 E-15142 Arteixo - A Coruña Spain P: (+34) 981 600 033 F: (+34) 981 602 107 Contact Damián

URSSA S. COOP

Specified Services   World Trade Center Transportation Hub Assistance CWI Management & Consultation URSSA S. COOP Campo de los Palacios, 18 E-01006 Vitoria-Gasteiz SPAIN M: (+ 34) 630 924 634 Contact José María Lagos Hernández Jefe de Exportación / Export Manager

Elaborados Metalicos Emesa, S.L.

Specified Services   AISC & AWS Fracture Critical Assistance Doc Preparation & Creation Onsite Assessment Elaborados Metalicos Emesa, S.L. Parque Empresarial de Coirós, parcela 9 15316 COIRÓS (A Coruña) Spain T: (+34) 902171000 F: (+34) 902283344 Contact Alvaro Yáñez Rego Contract Manager

Alstom Power

Specified Services   AISC Steel Building Structures Doc Preparation & Creation Onsite Assessment Alstom Power No 568, Eastern Lanzhou Road Jiaozhou City, Qingdao China 266317 P: (+86) 13573882190 F: (+86) 53288266516 Contact Thierry Pellegrino QPI Director

China Railway Shanhaiguan Bridge Group Co.,LTD (CRSBG)

Specified Services   Bridge Fabrication Assistance & Consultation China Railway Shanhaiguan Bridge Group Co.,LTD No.35 Nanhaixi Road Shanhaiguan, Qinhuangdao, Hebei, P.R.China P.C.: 066205 P: (+86) 0335 7940162 F: (+86) 0335 5152866 M: (+86) 13933510330 Contact Zhou Manrong (Maggie)

Southeast Fabricators, Inc.

Specified Services   AISC Steel Building Structures Simple Bridge, Bridge and Highway Metal Components Sophisticated Paint Endorsement Doc Preparation & Creation Onsite Assessment Southeast Fabricators, Inc. 7301 University Blvd East Cottondale, AL 35453 P: (205) 556-3227 Contact Tim Case