In April, 2005, Chengdu OST Slope Protection Co., Ltd was founded.

In 2008, Chengdu OST Slope Protections Co., Ltd developed into Sichuan OST Slope Protection Co., Ltd.

In May, 2008, OST participated in an emergent slope protection task of 109 tunnel of Baoji-Chengdu Railway.

In March, 2009, OST obtained Work Safety License issued by Sichuan Construction Department.

In July, 2009, OST acquired IS9000 Quality Management System Certification.

In September, 2010, OST was awarded National Safety Production and Construction Enterprise.

In October, 2010, OST won the award of AAA Honesty and Legal-abiding Enterprise.

In February, 2011, OST invested in unfamiliar industry, suffered 10 million economic losses.

In June, 2011, OST was evaluated as “Advanced Legal Entity”.

In April, 2012, OST built China’s first rockfall impact test platform.

In July, 2012, OST obtained GB/T9001 and GB/T5In May, 2013, the company project “Research on Rigid Grid to Protect Highway and Railway from Foreign Matter Invasion” won second prize awarded by China Railway Engineering Corporation (originally Ministry of Railway).

In May, 2014, new-type easily recovered flexible passive protection system passed through rockfall impact test.

In January, 2015, 3000KJ passive protection net passed through rockfall impact test.

In November, 2015, OST was invited to Symposium on Technical Regulations of Passive Flexible Protection System.