BHP Billiton's freeze on approving new projects is set to thaw after June 30, with a Canadian potash project likely to be among those considered first.
The Jansen potash project has been under development for several years in Canada's Saskatchewan region, and is expected to cost more than $US10 billion ($9.5 billion) to build when approved.
It was one of several "mega projects" that were expected to get the go-ahead from the BHP board in 2012, but fell victim to the company's promise to freeze approvals on expensive growth projects until at least June 30, 2013.
Speaking at a Bloomberg conference in Sydney on Wednesday, BHP's chief financial officer Graham Kerr indicated the freeze would not extend into next financial year, and that Jansen might be one of the first proposals that new chief executive Andrew Mackenzie offers to the board.
If taken to the board within the next 15 months, Jansen could be approved sooner than the Scarborough LNG joint venture with ExxonMobil, which the companies have suggested could be approved in late 2014.
Both appear well ahead of the Olympic Dam expansion in the pecking order of BHP's big-growth options. Olympic Dam is undergoing re-evaluation for up to four years in a bid to find a cheaper way of developing the massive copper, gold and silver deposit in the South Australian outback.
Mr Kerr said potash was the one commodity that could rise to join iron ore, coking coal, petroleum and copper as one of BHP's top-tier growth divisions.
"We are not the iron ore only company," he said, in a thinly veiled swipe at less-diversified rivals such as Rio Tinto and Fortescue Metals Group.
Potash can be mined to help produce fertilisers, and is considered a growth commodity because of the expectation that the world's demand for food will expand and change in the decades ahead.
BHP has previously said that barriers to entry in the potash industry are high, and that will ensure that supply will struggle to keep up with demand in the future.
The company has continued to work on Jansen despite the approvals freeze, and has most recently been building the construction and service shafts for the underground mine.
Deutsche analyst Paul Young speculated in March that BHP might be tempted to sell a stake in Jansen and develop the mine as a joint venture.
"Similar to our view on Olympic Dam, we think selling part of Jansen would reduce risk for shareholders," Mr Young said last month.
BHP reported $US1.9 billion worth of cost cuts (on an annualised basis) at the February half-year results, and Mr Kerr said investors should expect more to be announced at the full-year results in August.
It was revealed earlier on Wednesday that some of those savings would be achieved at the Peak Downs coalmine in Queensland, which BHP operates in a joint venture with Mitsubishi.
The joint venture partners have terminated a supply contract with Leighton Contractors and replaced it with a cheaper contractor, HSE Mining. A spokeswoman for the joint venture said the change was part of the focus on "reducing its overheads and operating costs across the business".
Earlier this year, BHP and Rio Tinto were criticised by Glencore boss Ivan Glasenberg for expanding too quickly and driving down the price of iron ore. But Mr Kerr defended the company against allegations it had "screwed up", saying that someone else would have built the new mines if BHP had not.
BHP shares closed up 57¢ at $33.68 and some pundits have suggested the rise is linked to a decision by Macquarie to upgrade the company from a "neutral" rating to "outperform".
BHP will report its March quarter results next Wednesday, while Rio will report its quarterly results on Tuesday.