(Yicai) Dec. 11 -- The London Metal Exchange has never launched any options or futures products denominated in Chinese yuan, CEO Matthew Chamberlain said in an interview with Yicai, refuting online rumors claiming that the commodities exchange suspended all non-US dollar-denominated metal options trading from Nov. 10, including those in yuan. The LME attaches great importance to the Chinese mainland market and is actively expanding services related to the yuan, he added.