DAVOS, Switzerland, Jan 17 (Reuters) - China welcomes foreign investment and will continue to open up to the world, the country's Vice-Premier Liu He told the World Economic Forum annual meeting in Davos on Tuesday. "China will always promote all-round opening up, and improve the level and quality of opening up," he said. "Foreign investments are welcome in China, and the door to China will only open up further." Its Davos turnout also contrasts with the conspicuous absence of Russia, a key ally and whose invasion of Ukraine China has refused to condemn. At Davos, Liu will meet leaders from other countries and members of the business community including CEOs from finance, tech, consumer and industrial companies, a Chinese official familiar with the matter told Reuters.

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