- Construction of civil, industrial, traffic, irrigation, airport, wharf, wire-line, and electrical substation works.

- Repair and installment of mechanical equipment.

- Production and trading of materials, equipment and accessories in construction sector.

- Rental of equipment and investment consultant.

- Trading of good transport.

- May 18, 2007: Licogi 16.6 JSC. was established from equitizing the branch of Licogi 16 JSC in Hanoi with a charter capital of VND20 billion.

- September, 2009: Increased charter capital to VND25 billion.

- July 2010: Increased charter capital to VND41 billion.

- June 24, 2010: Traded on Hanoi Stock Exchange (HNX).

- July, 2011: Raised charter capital to VND60 billion.

- October, 2012: The Company merged into Licogi 16.9 Company, increasing the charter capital to VND76 biliion and renamed as Licogi 166 Joint Stock Company.