First of all, Taiwan adventuring independence is in China's interest. The party will just vastly increase military spending and start a war of arms race with Taiwan. If Taiwan does not venturing into formal independence, it is actually bad reputation for China to significantly grow its military. However, if Taiwan does venture into formal independence, it will give the CCP a legitimate international call to arm up and confront Taiwan. This will significantly ease China's confrontation with South East Asia, because the SEA countries has been suspicious of PRC's military build up. Taiwan independence will give China the excuse and legitimacy, and a false facade that its strategic military resources is being draw to Taiwan Straight. This will also mean the same for Japan and Korea, both would stay away and enjoy the fact that Taiwan bears the full thrust of PLA's attentions and resources.