LONDON (Reuters) – The London Metal Exchange said on Friday it had introduced a requirement for members to report all over the counter trades for metals including aluminium, copper, nickel and zinc to enhance the visibility of the market. “This … will improve the ability of the LME to oversee activity holistically through increased visibility, ensuring future market stability, and continued compliance with its regulatory obligations,” the exchange said in release. (Reporting by Pratima Desai; Editing by Edmund Blair)