Methanex to shut Taranaki plant and sell gas contracts

New Zealand's largest gas user, Methanex, has announced it will close its Taranaki plant and sell off its gas contracts, citing a lack of natural gas and no clear pathway to new supplies.

The Canada-based company said it had agreed to sell substantially all of its New Zealand natural gas contractual entitlements, commencing in the first quarter of 2027 and continuing through the end of the decade when those entitlements expire. Methanex expected to "indefinitely idle" its production facilities at Motonui, north of Waitara, with methanol manufacturing ceasing at the end of February 2027, after 32 years of operation in the country.

The company, which employs around 200 people (not including contractors and suppliers), has in the past been responsible for taking around 30 to 40 percent of all of New Zealand's natural gas production. About 95% of its production is exported to customers in the Asia Pacific region.

Methanex said it had been managing declining gas availability for several years and, with "no clear path to meaningful new supply", was no longer confident it could continue production. Rich Sumner, president and chief executive of Methanex Corporation, said the New Zealand operations had made "significant contributions to the Company’s global operations and the New Zealand energy sector". He added that the company had been preparing for this eventuality given declining gas availability, and would focus on operating the plant over the coming months and supporting staff before "safely idling and preserving the facility for long-term optionality should future circumstances support a restart of operations".

Local impact

New Plymouth Mayor Max Brough said the announcement was disappointing but not unexpected. "They've got no continuity of supply. They don't have enough gas coming and they're making the best of a bad situation," he told 1News. He said the loss of around 300 "high paying jobs" would be felt well beyond the plant itself, affecting the engineering and electrical instrumentation industries, which are highly technical and well-paying.

Brough said many of those losing jobs would struggle to find similar work. "There's no alternative here for those roles. They will be heading to where [they can] support their families, and it probably won't be in New Zealand. So that's very disappointing," he said.

The mayor also linked the closure to a longer trend since the Labour Government's 2018 decision to ban new offshore oil and gas exploration. "It takes seven to 10 years to bring a well on line," he noted. He disputed the suggestion that an LNG terminal was ever meant to keep Methanex running, saying "LNG is there for firming the electricity market in dry years. It's not there to power Methanex – never was."

Despite the setback, Brough remained optimistic about other gas exploration projects in the city. "I've rolled out the red carpet and the welcome mat actually, because New Zealand needs gas," he said. "Whatever your political persuasion is, the reality is, we still need gas to power industry in a lot of places in this country and earn export dollars."

Political reaction

The Green Party said the closure left the government no reason to push on with its plans to build a $1 billion liquified natural gas (LNG) import facility. Co-leader Chlöe Swarbrick said it was time for the government to cancel the project. "Methanex leaving takes the country's largest gas user out of the market and frees up gas supply through to the end of the decade for electricity generation," she said. "The 'gas shortage' the government has been talking up to try and justify this fossil fuel project is now about to be a great deal smaller."

Swarbrick said if the government was not prepared to "do the rational thing" and cancel the project, then Prime Minister Christopher Luxon "must return to the drawing board before signing any daft deal".

The government has set out to build the LNG terminal, saying it is necessary to shore up energy supply. RNZ has approached Energy Minister Simeon Brown for comment.

Energy market implications

Genesis Energy said it had secured additional gas supplies from a third party for the period of March 2027 and 2029. The additional gas is 11.4 Petajoules, about 10 percent of national gas production. Genesis has not said who it got the gas from.