China seems to favour ASEAN + 3 as the lead institution.

中国似乎更中意以东盟+ 3为主导的体制。

youdao

The Leadership Meeting between ASEAN and China, Japan and Korea (10 + 3), which is an annual event, was held in Kuala Lumpur on December 12, 2005.

2005年12月12日，东盟和中国、日本、韩国(10 + 3)在吉隆坡举行一年一度的领导人会议。

youdao

China also attaches importance to India's wish to establish relationship with ASEAN 10 + 3 cooperation. We are willing to talk with India on the cooperation between India and of East Asia.

中国也重视印度与东盟10 + 3合作建立联系的愿望，愿意与印度就东亚合作问题进行沟通。

youdao