By Echo Wang (Reuters) – The Securities and Exchange Commission (SEC) has begun issuing new disclosure requirements for Chinese companies seeking listing in New York as part of an effort to raise investor awareness of the risks involved, according to a document reviewed by Reuters and people familiar with the matter. Some Chinese companies have already begun to receive detailed instructions from the SEC, which regulates the US capital market, about further disclosure of their use of offshore vehicles known as variable interest entities (VIEs) for IPOs; implications for investors and the risk that Chinese authorities will interfere with the…