I think this article didn’t reference the South China Sea because it was mostly focused on their regional competition with India. The PRC is strengthening economic ties with India’s neighbors Pakistan, Nepal, Sri Lanka, and the Maldives to significantly increase Chinese strategic influence in the area.The article doesn’t mention the First & Second Island Chains, which are projections into the Pacific. Also the map shows proposed corridors down the Malayan Peninsula & from Yunnan Province in Southern China through Myanmar to the ocean. This is to bypass the choke point of the Malacca Straight, through which a great amount of Chinese trade passes through. At one stage there was a plan for a Chinese funded canal through the Thai isthmus for the same reason, though this didn’t eventuate.