* London market re-examines OTC gold trade
* Exchanges vie for London gold futures contracts
* China's benchmark ambition could further hit London liquidity
By Clara Denina
VIENNA, Oct 19 (Reuters) - As the London gold market enters its next phase of reform, a sense of urgency is key because competitors, including commodity consuming giant China, are poised with new products to grab liquidity and global influence.
Global liquidity is shrinking due to persistently low gold prices as the market still struggles to shake off the impact of a seismic crash two years ago. Bruised investors have largely stayed away, while dealing desks have also become smaller.
London, currently the global market nucleus, is re-examining the way bullion is traded after sweeping reform of its price benchmarks.
At the same time, China, the metal's largest consumer and producer, is aiming to become a price setter with its yuan-denominated gold benchmark by the end of 2015, a move that could beat any rivals' effort to increase market share.
"There are too many vested interests and China is likely to win the main prize, because it wants to influence the prices of the commodities it is the biggest user of," one senior London trader said at the opening of the gold industry's annual conference, this year in Vienna.
The London Metal Exchange (LME)'s CEO Garry Jones said last month it was in talks with those in the gold industry over the launch of a precious metals derivatives.
The Chicago Mercantile Exchange (CME) is also developing a European gold futures contract to serve customers in London, sources told Reuters in May, in what would be a direct challenge to London's traditional cash market.
The need to make the $5 trillion a year over-the-counter market more transparent, profitable and liquid led the London Bullion Market Association (LBMA) to formally ask exchanges and technology firms to bid for services such as a gold exchange or a clearing platform.
Greater regulatory scrutiny, which has already forced changes in how precious metals prices are set, has not mandated central clearing but the industry accepts that larger changes lie ahead.
"Central clearing is the way forward, because brokers are finding more difficult to have credit lines open with the few counterparties left, given that many are withdrawing," the head of gold trading at a European bank said.
As prices of commodities tumble and profits shrink, banks and brokers, including Deutsche Bank and Mitsui, have retreated from the London gold market.
"Some players don't wish to play anymore. This trend is not good news," said Adrian Ash, head of research at BullionVault.