Morobe is also home to the BOC's national head office, oxygen filling storage facilities and a cylinder testing shop.
The K1.2 million facility will strengthen the gas and engineering firm's 50-year presence in the Lae region and expand service to local customers, BOC said.
Mining, oil and gas, industrial, health, refrigeration and agriculture industries would be serviced by the facility, which includes modern gas dock operations purpose-built for the local environment.
"BOC is proud to be expanding our operations with a new Gas and Gear that provides a central hub for customers to purchase industrial gas, welding and related products, and seek the best advice from our dedicated team of experts," BOC South Pacific MD John Evans said.
"Since opening our first oxygen plant in Lae in 1967, BOC has continuously invested in infrastructure, safety and our people to ensure we meet the needs of our customers now and into the future. This new facility is part of our ongoing commitment to support local industries, agents and staff where we operate," Evans said.
The official ceremony included a blessing by Senior Pastor John Garu and cultural dance performance by the Bougainville Fellowship Group.
BOC also has operations in Port Moresby and Gerehu and employs more than 100 people nationally and has 16 distributor agents.