Officials expect to finalize agreement during Putin's official visit next week

China and Russia have agreed on most of a deal for natural gas delivery and cooperation on other projects. It will be signed during Russian President Vladimir Putin's visit to Beijing next week, a senior Chinese official said on Thursday.

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Companies from both sides are finalizing the gas contracts in Moscow, and the aim is to sign them during Putin's visit, Deputy Foreign Minister Cheng Guoping told a press briefing.

Putin will attend a summit of the Conference on Interaction and Confidence Building Measures in Asia from May 20 to 21 in Shanghai. It's his first trip to China since his opposite number, President Xi Jinping, took office.

Russia faces Western sanctions after it incorporated Ukraine's Crimea region this year. Russia is looking to Asian markets to reduce dependency on Europe as a buyer of energy. It's "100 percent" that China and Russia will sign a gas deal, Sergey Pikin, director of Russia's Energy Development Fund, said in late April.

Russia's top natural gas producer, Gazprom OAO, plans to supply China with 38 billion cubic meters of gas annually starting from 2018 and increase it to 68 billion cubic meters. The fuel will be supplied through China's western and eastern pipelines. No timetable has been specified for the increased supply.

A person at China National Petroleum Corp, the nation's biggest natural gas importer, told China Daily that the price of delivered gas is being discussed and has been the stumbling block in talks.

Sun Yongxiang, a researcher with the Development and Research Institute of the State Council, China's cabinet, said the price may be around $400 per 1,000 cubic meters, which is close to Russia's demands.