new delhi toyota motor corp is preparing to divulge details of the hybridcar engine technology it pioneered with the prius to china in an attempt to catch up with rivals in the worlds biggest auto marketchinese officials asked toyota to share its gasolineelectric technology to help local companies meet stricter emissions targets people familiar with the matter said asking not to be named because the talks are private seeing this as a chance to make inroads in china toyota has engaged in advanced talks to license its hybrid system to chinese carmaker geely automobile holdings ltd two of the people saidgovernment backing for hybrid vehicles would be a boon for toyotas ambitions to boost sales in china hybrids have been a success for toyota in europe and japan for years but china has so far placed more focus on socalled pure electric vehicles promoting them through subsidies and tax breaksgradually though china is starting to see hybrids as a means of reducing emissions on the way toward a pureelectric future part of a plan to reach ambitious environmental goals and reduce the countrys reliance on imported oil trade tensions emanating from america are giving added impetus for toyota and china to work togethertoyota shares rose as much as 18 percent on thursday in tokyo compared with 11 percent for the nikkei 225 stock average geely jumped 59 percent in hong kong the biggest intraday gain in more than two weekstrailing volkswagenan increase in hybrids popularity could help toyota catch up with sales leaders volkswagen ag and general motors co which each sold more than 4 million vehicles in china last year of the 13 million vehicles toyota sold about 10 percent were hybrids the company wants to raise that proportion to more than 30 percent by as early as 2020chinese carmakers that dont have hybrid technology are asking toyota to work with them and the company is considering several of them said a toyota executive speaking on condition of anonymity toyota should be able to announce its stance officially within this year the executive saidas part of the discussions toyota is in talks to share its hybrid knowhow and license the technology as a complete package via battery supplier hunan corun new energy co to geely and potentially other chinese carmakers the people familiar said corun works closely with geely which shot to the no 3 spot in chinese sales this year topping all japanese rivals for the first time corun shares rose 16 percent in shanghaioptimize performancehybrid is such a complicated system and cant be copied simply said tatsuo yoshida an auto analyst at sawakami asset management in tokyo toyota needs to also teach the partner how to optimize the hybrid systems performancetoyota has an open policy toward working with partners which also applies to the area of electrification technologies a toyota spokeswoman said talks with geely about cooperating on hybrid technology is based on that policy though nothing has been decided for now she said a geely representative