What makes you think a country with a long history of theft and cheating agreements will do anything besides ignore any rules the west attempts to create?
No it hasn't. It admitted China into the WTO (only to have China go back on pledges to open their economy), stood up multiple industries domestically in China with expertise only to have all foreign entities kicked or squeezed out.
Why would anyone think China would go along with any international agreement ?
If a company (Chinese or otherwise) ignores the law, then it would be appropriate to sanction them.