It expanded operations across Japan post World War II, and in October 1970, acquired Nippon Safety Glass Co., Ltd.

In April 2001, the company acquired Nippon Muki Co., Ltd. and in July 2004, moved the registered head office from Osaka to Minato Ward in Tokyo.

Following an agreed acquisition of 20% of Pilkington of the United Kingdom in 2001, in 2006, NSG purchased the remaining 80% of shares.

Founded in 1918, NSG acquired the leading UK-based glass manufacturer Pilkington plc in June 2006.

[4] NSG TEC solar energy products, technical glass for white goods and displays