Both of your two accounts have signed independent contracts. If they are merged, there will be problems with information and sales data, so you cannot directly merge accounts before the contract expires.
Thanks
There is a problem with the merger, that is, your two accounts are exclusive accounts, one is exclusive to China and the other is exclusive to the world. If you merge, you can only downgrade the global exclusive account to a Chinese exclusive account, then you will not have a commission rate of 63%, and you can only charge commission at a rate of 49%, which will not be worthwhile.