THE final section has been placed on top of the GLNG flare tower on Curtis Island, making it the tallest structure at the plant.
Santos vice president downstream GLNG Rod Duke said he was pleased all 11 sections of the flare tower had been lifted safely at the site.
"Installing the flares will be the next focus on this structure, which is already visible from the main street of Gladstone, bringing its total height to 122 metres," Mr Duke said.
Crews have also started building the outer concrete roof for one of two LNG tanks, each designed to hold the volume of 56 Olympic-sized swimming pools.
"The concrete tank roof will rest on top of the steel roof that was airlifted in June, bringing the combined weight to 2600 tonnes," Mr Duke said.
"The first layer of concrete was poured on the tank this week after the steel roof was reinforced to ensure it could withstand the weight."
Jetty modules are being installed at the product loading facility where international tankers will berth to collect LNG from 2015.
The Cantilever Traveller that was used to complete piling in the area earlier this year has been reconfigured to do the installation.
"The reconfigured Traveller is progressively lifting 17 jetty modules off trailers and placing them onto the 380 metre jetty approach trestle," Mr Duke said.
"Work continues simultaneously on the loading platform in this area and crews are preparing to install its loading arms."