Manufacture and supply of piping products, project materials, instruments, valves, and special alloy steel products; reportedly placed an order with Taiwan's Heli-Ocean Technology Co., Ltd. for a shipment of 108 pressure transducers manufactured by Inficon Holding AG (Switzerland), sent to Moshever Sanat Moaser company in Iran in March 2009; reportedly initially ordered the pressure transducers on January 24, 2009 for delivery to its Shanghai base, but then revised the purchase order, changing the delivery destination to Tehran and increasing the payment to Heli-Ocean from $112,303 to $145,800; reportedly sent an email in February 2009 assuring Heli-Ocean that the pressure transducers were not for Iran's nuclear industry, but that Chinese law prohibited their shipment from China to Iran.

Other Roc-Master units include Roc-Instru Co., Ltd., Roc-Master Jian Piping Products Co., Ltd., Roc-Master Heavy Industrial Company, Ltd., and NewRise Mechanical Engineering Material Co., Ltd.; affiliated with Rom-Master Industrial (Int'l) Limited, which is located in Hong Kong and markets Roc-Master products internationally; Iranian customers have included Petrochemical Industries Design and Eng. Co., Azar Kia Industrial and Trading Group, and Sepehr Rosemond Engineering & Construction Co.; in January 2009, supplied Sepehr Rosemond with octagonal ring gaskets and ASTM A694 F52 carbon steel flanges clad with Inconel 625 and Incoloy 825 alloy; customers in China have included the Bechtel Qinshan CANDU Nuclear BOP Project, Atomic Energy Canada Ltd. Qinshan CANDU Nuclear Project, Qinshan Nuclear No. 3 Co., Ltd., and China Nuclear Industry 23rd Construction Corporation; established in 1997.