To ensure the accuracy and reliability of release data, SNS invested 20 million yuan to establish a testing center in 2017 and was recognized by CNAs laboratory in 2019. It has the technical ability to calibrate / test in accordance with relevant international standards. In November 2020, based on the testing center, SNS established a wholly-owned subsidiary Sichuan AIF Testing Technology Co., Ltd. and obtained the CMA certification in August 2021, which can realize the testing of more than 200 indicators and provide professional testing value-added services for upstream and downstream customers.