Change Singaporean citizenship and return to China.

Naturalization of a country is not "changed"

Regardless of principle or technology, you are a Singaporean citizen and regarded as a "foreigner" by the China authorities.

Since your spouse is a citizen of China, you can obtain a residence permit in China by virtue of your spouse relationship.

If the holder is under 60 years old, the residence permit is valid for one year, and if he is over 60 years old, it is valid for two years. This is the latest policy.

The residence permit allows the holder to stay in China indefinitely within the validity period.

And before the expiration of the validity period, you don't have to go to Hong Kong and Macao for a ride, you can apply again.

I am a Singaporean citizen and have obtained a residence permit in China. My wife is a citizen of China ~