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Xinyuan Real Estate Co Ltd operates as a real estate developer and property manager in China. It focuses on developing residential projects, which typically consist of multiple residential buildings that include multi-layer apartment buildings, and others. Its several projects include auxiliary services and amenities such as retail outlets, leisure and health facilities, kindergartens, and schools. It aims to provide comfortable and convenient real estate-related products and services to middle-class consumers.
Psychemedics Corp is engaged in providing testing services for the detection of drugs of abuse through the analysis of hair samples. The company operates through a single segment of drug testing services which include training for the collection of samples and storage of positive samples for its customers for an agreed-upon fee per unit testing of samples. The testing methods of the company utilize a patented technology that digests the hair and releases drugs trapped in the hair without destroying the drugs. They provide testing services for the detection of drugs of abuse and other health markers through the analysis of hair samples. Geographically it generates the majority of its revenue from the United States.