On February 8, 2018, the company accepted the DNV audit. This audit also upgraded the ISO9001-2008 version to the 2015 version. 

DNV (Norwegian Classification Society) is the world's most well-known and most stringent quality system auditing organization. The auditor was very impressed with Shanghai Peentech's strict implementation of the quality management system.

She praised that Shanghai Peentech is the best company in the quality management system implementation among more than 100 companies that she has reviewed in the past three years.