Oracle Cloud: Forever free database and cloud services; available in Japan, South Korea, etc., and by the United States, Europe, etc.

Oracle releases free database and cloud services, claims they will be “free forever”
Users can get:
2 autonomous databases, each with 1OCPU and 20G storage
2 compute instances, each with 1/8 OCPU and 1G memory
2 block storages, 100G in total, up to 5 free backups
10G object storage, 10G archive storage, 50,000 monthly API request limit
1 load balancer, 10Mbps bandwidth
10T monthly outbound traffic
500,000,000 ingestion datapoints and 10 million monitoring datapoints for Monitoring Service
100 million notification delivery options and 1,000 emails per user per month

When registering, you can choose China, you need to verify your mobile phone number, and your credit card will be charged $1 (it is estimated that it will be refunded).

When registering, the optional regions are Asia, including Japan, South Korea, etc.

Registration address : https://www.oracle.com/cn/cloud/free/