US technology may have been used to upgrade PLA submarine

A bilateral nuclear cooperation agreement was signed between the United States and China in 1985. Because the agreement is expected to expire by the end of this year, the Obama administration plans to make a new deal known as 123 agreement with China based on the Atomic Energy Act. It will help regulate the sharing of nuclear technology. During the hearing held on May 12 on the new agreement, Corker said that China is in violation of the current agreement as it provided a US nuclear reactor to Pakistan.