The future of Bell Bay Aluminium in northern Tasmania has been secured through a new five-year electricity agreement and a jointly funded $200 million government support package, announced on October 1.

The agreement involves smelter owner Rio Tinto and state-owned Hydro Tasmania, with electricity supply now secured through to December 31, 2031. The federal and Tasmanian governments will provide additional financial support over five years as Tasmania's energy system continues to change.

The announcement follows months of uncertainty surrounding the facility. Bell Bay Aluminium's previous electricity arrangement was due to expire at the end of 2026, while negotiations over a new power contract had continued between Rio Tinto and Hydro Tasmania.

The smelter is a major employer in the region, with approximately 550 full-time employees. Rio Tinto says the operation also indirectly supports more than 1,200 jobs and works with around 180 suppliers.

The $200 million package will be split between the Australian and Tasmanian governments and is intended to help maintain the smelter's ongoing operation and international competitiveness.

The new power agreement is separate from the government funding package. Details of the electricity pricing arrangement have not been publicly disclosed, although the Tasmanian government has described it as globally competitive.

Bell Bay Aluminium has operated since 1955 and was the first aluminium smelter established in the Southern Hemisphere. The facility produces approximately 190,000 tonnes of aluminium each year, supplying products used in industries including transport, construction, packaging and electrical manufacturing.

The announcement is particularly significant for northern Tasmania because the smelter supports a substantial network of businesses and workers throughout the region. Government and industry representatives have previously highlighted the facility's role in the economies of George Town, West Tamar and Launceston.

The new arrangement provides certainty for the workforce and supply chain through 2031 while governments and industry develop longer-term plans for the Bell Bay industrial precinct.

The agreement comes after increasing pressure on Australian aluminium smelters from international competition and high energy costs. Bell Bay had also faced uncertainty after it was not included in the federal government's Green Aluminium Production Credit scheme.

The latest agreement means the smelter can continue operating while longer-term industrial and energy strategies for northern Tasmania are developed.