Chinese Foreign Minister Wang Yi seeks to bolster Beijing's position in Southeast Asia on latest tour of region

China's Foreign Minister Wang Yi will begin a tour of five Southeast Asian nations on Sunday in the latest bid to woo its neighbours and counter Washington's diplomatic and economic outreach in the region.

Wang's tour starts in Myanmar, where he is expected to co-chair a foreign ministers' gathering of the Lancang-Mekong Cooperation mechanism. He will be the highest-ranking Chinese official to visit the Southeast Asian nation since the military coup last year.

Foreign ministers from five Lower Mekong nations - Vietnam, Thailand, Myanmar, Laos and Cambodia - will also attend the meeting amid ongoing tensions over the water resources management and dam construction.

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Wang will then visit Thailand, where the Apec summit will be held in November, the Philippines and Malaysia, before attending a G20 meeting of foreign ministers in Indonesia, according to the Chinese foreign ministry.

Zhao Lijian, a spokesman for the ministry described Southeast Asian nations as "important partners that share vast common interests and seek common development" with China, adding that Wang's trip came at a critical time when the world was "fraught with turbulence and change".

He said Beijing hoped to step up strategic communication, "work for high-quality Belt and Road cooperation", "boost economic recovery and uphold peace and tranquillity".

It will be Wang's first visit to the region since US President Joe Biden held a summit with leaders from 10 Southeast Asian nations and the launch of his Indo-Pacific Framework to counter China's influence.

Over the past few weeks, Wang has been busy travelling to the South Pacific and Central Asia to rally support for Beijing amid growing concerns that the Biden administration's charm offensive in the region has worsened China's position.

Zhang Mingliang, a Southeast Asian affairs specialist from Jinan University in Guangzhou, said Wang's trip was "a comprehensive, calculated move" to try to enlist support from all the countries in the region.

"It is good to see [Wang] has moderated his approach, kept a low profile and tried to use diplomacy to seek understanding and support from neighbouring countries," he said.

He noted that as China's ties with the US and its allies continue to deteriorate, Beijing has toned down its diplomatic assertiveness and become increasingly tolerant towards Southeast Asian countries in recent months.