US Nuclear Corp. announced on Monday a strategic manufacturing agreement with Dalian Zhonghe Scientific and Technological Development Co., a subsidiary of China National Nuclear Corp., a major investor in all nuclear power plants in China.The cooperation agreement will have the two companies working together to make instrumentation for Chinese nuclear power plants. The instruments will be built at a factory in China to make them cost-competitive and optimized for Chinese operators based on local regulations and procedures, US Nuclear said in a statement.Through its sales office in Beijing, the agreement with Dalian Zhonghe will allow US Nuclear to capture more of the Chinese nuclear power market, the company added.Also, the company said it has completed a shipment of tritium and carbon-14 air samplers and portable tritium monitors to China.US Nuclear has three subsidiaries – Technical Associates in Canoga Park, which makes radiation detection equipment; Overhoff Technologies in Milford, Ohio, which specializes in tritium detection equipment; and Electronic Control Concepts, also in Milford, which makes voltmeters to check industrial and medical X-ray machines.Shares of US Nuclear (UCLE) closed Monday up 4 cents, or 6 percent, to 71 cents on the over-the-counter market.