Chinese State Councilor and Foreign Minister Wang Yi (1st R) delivers a speech at the business summit of the Greater Mekong Subregion (GMS) Economic Cooperation in Hanoi, Vietnam, March 30, 2018. (Xinhua/Wang Shen)

HANOI, March 30 (Xinhua) -- China is willing to share its development opportunities with other countries, but any protectionist move will mean shutting the door into China, Chinese State Councilor and Foreign Minister Wang Yi said on Friday.

Wang made the remarks at the business summit of the Greater Mekong Subregion (GMS) Economic Cooperation in Hanoi.

This year marks the 40th anniversary of China's reform and opening up, said Wang, adding that China gained its achievements through this policy in the past 40 years, and will continue to aim for higher quality development through the same strategy.

Reform and opening up is China's set policy, which will neither be changed nor be affected by any external factors, Wang said.

China's reform and opening up is in line with the interests of the Chinese people, and will also benefit other countries, he added.

Taking the 40th anniversary of the reform and opening up as an opportunity, China will put emphasis on the development of the Belt and Road Initiative, focus on both "bringing in" and "going global," and make new ground in all-round opening up through links running eastward and westward, across land and over sea, said Wang.

It needs to be pointed out that opening should work both ways, said Wang, adding that China opens itself to other countries and hopes others will be open to China.

Frictions and disputes in international trade are nothing surprising. What's important is to work for win-win solutions through equal consultation in line with laws and rules, said the Chinese state councilor.

Those who choose unilateralism or protectionism, an approach against the trend of the history, will find themselves going nowhere and see their own interests undermined, Wang said.

Taking protectionist measures equals to shutting the door into China, which will harm their own interests; both time and facts will prove it, said Wang.