Yes indeed. China relies on Burma's rich natural resources, especially oil and gas which is pumped from Sittwe in the Bay of Bengal across Burma to Kunming in China. The country has a very big influence in Burma.
Reference (Google):
Since 1989, China has supplied Myanmar with jet fighters, armored vehicles and naval vessels and has trained Burmese army, air force and naval personnel. Access to Myanmar's ports and naval installations provide China with strategic influence in the Bay of Bengal, in the wider Indian Ocean region and in Southeast Asia.
Of all its trading partners, Myanmar traded most with China, which accounted for over 26 percent of total trade volume.Dec 19, 2022