Baseless accusation. China is by and large compliant with WTO rulings. From the mouth of the libertarian Cato Institute

Select highlights

China has a relatively strong record of compliance in the complaints that have been brought against it so far.

From 2004 to 2018, 41 complaints were brought against China, on 27 separate issues, or “matters” in WTO-speak—legal claims of actions inconsistent with WTO obligations, sometimes with multiple countries complaining about the same matter, resulting in more complaints than matters. During that time, China was second only to the United States in the number of complaints it faced.

Of the 27 matters litigated against China, 5 are still pending, 12 were litigated all the way through, and 10 were resolved through some kind of settlement, or not pursued after the measure was modified

In all 22 completed cases, with one exception where a complaint was not pursued, China’s response was to take some action to move toward greater market access. This was done either through an autonomous action by China, a settlement agreement, or in response to a panel or appellate ruling.

The overall picture of China’s response to WTO complaints looks very much like the situation of other governments that face such challenges… But there are no cases where China has simply ignored rulings against it, as has happened with some other governments. For example, the United States has not complied with the WTO ruling in the cotton subsidies complaint brought by Brazil, and the European Union (EU) still does not allow hormone-treated beef to be sold there even after losing a complaint brought by Canada and the United States.

As Mark Wu, despite his reservations about the efficacy of WTO dispute settlement with respect to China, has acknowledged, thus far the WTO “has served its purpose effectively as a forum to enforce China’s trade obligations. On the numerous occasions when the WTO has ruled against China, the Chinese government has willingly complied with the judgment and usually altered its laws or regulations to comply with WTO rules.”

(own emphasis)

Classic case of ‘Rules (vibes) based international order’ v laws based international order. MOFCOM put out its own paper (direct link to large pdf) on this earlier this year, but I’m sure it’d be dismissed out of hand in discussions about compliance.