It’s an opportunity best characterized as “a marathon, not a sprint.” That’s how Western Potash (T.WPX) VP of corporate development John Costigan refers to his company’s Milestone project. The high-grade potash solution mine proposed for southern Saskatchewan achieved full feasibility in December 2012 and final environmental approval last April. Then came tumultuous times, with what Costigan calls the “Russian-Belarusian debacle” that took down the commodity’s price. Now, with solid Asian investment and indications of a market revival, the advanced-stage project might be seen as an early-stage opportunity emerging anew.

Understandably, enthusiasm for potash plunged with the price following Uralkali’s breakup with cartel partner Belaruskali last summer. Late last year, however, JP Morgan pronounced a more optimistic outlook for 2014. By January analysts were saying prices might have bottomed in the Chinese contracts signed by Uralkali and Canpotex, the marketing arm of PotashCorp (T.POT), Agrium (T.AGU) and Mosaic (MOS).

More recent news suggests funding’s picking up. On February 18 Verde Potash TSX:NPK reported significant progress in its application for US$105 million in loans, grants and investment from the Brazilian government for the company’s Cerrado Verde project. Six days earlier came news that fertilizer giant ICL was buying a $25-million stake in Allana Potash (T.AAA), with potential up to $84 million, along with an offtake agreement for the company’s Danakhil project in Ethiopia. Last June Western got a $31.98-million cash injection from a Chinese joint venture.

The attraction was the full-feas, fully permitted Milestone. The operation calls for solution mining, in which water is pumped into underground caverns and then retrieved as potash-rich brine. A relatively simple but highly effective technique, solution mining would allow Western to build the greenfield operation in about 40 months.

Just 60 kilometres away the same approach is being taken by the giant K+S Group. Now under construction, the Legacy project is scheduled to begin potash solution mining in 2016.

Milestone benefits from Saskatchewan’s mining-friendly policies and rich infrastructure. Two continental railways pass through the 35,400-hectare property, as do roads, power and gas lines. An agreement with the city of Regina, 30 kilometres away, provides a supply of treated waste water to extract the potash—enough water, in fact, to flush out 2.8 million tonnes per year for the mine’s projected 40-year life.

Those benefits have already attracted a $31.98-million investment from CBC (Canada) Holding Corp, a JV comprised of fertilizer producer China BlueChemical and Benewood Holdings, a subsidiary of the Hong Kong investment firm Guoxin International Investment Corp. The deal comes with a 20-year offtake agreement for the lesser of 30% of Milestone’s production or a million tonnes a year.

With a 19.9% stake in Western, CBCHC plays an active role in the strategic alliance. One China BlueChemical appointee serves on Western’s board and another acts as an observer. The alliance has struck two six-person committees, one to study Milestone’s technical, construction and procurement details and another to recommend financing strategies, meet potential financiers and evaluate proposals.

The alliance brings technical synergies. It also offers potential financial flexibility that could help the junior put together the $2.91-billion capex—a considerable sum but substantially less than K+S is spending 60 kilometres away. One possible Milestone scenario could involve Chinese investment banks which, Costigan points out, can structure finance agreements with a 3:1 debt-to-equity ratio. With one or more additional partners, Western could make the transition to a potash producer.

The company already has mining expertise, most notably with project director Richard Lock. In fact his career has been based on projects much more challenging than a southern Saskatchewan solution mine. While with Rio Tinto NYE:RIO, Lock took the Northwest Territories’ Diavik diamond mine from exploration to production. Among other accomplishments, he also acted as project director for Arizona’s Resolution project, now in pre-feasibility and potentially North America’s largest copper mine.

As for potential partners, discussions have picked up, Costigan says. “There’s renewed interest now. People think the market has settled. If we see prices rise, there’ll be even greater interest.”

The commodity’s long-term fundamentals remain strong, he says. Nothing’s stopping population growth. Meanwhile the global decline of arable land calls for ever-higher crop yields.

“Look at the growth in Chinese potash consumption—it’s definitely why our partners came in,” Costigan says. “They recognize they’re going to see big increases in their consumption. China’s ramping up their domestic supplies, they’re in Thailand, Africa, Kazakhstan. But when you look at the projects out there, there’s nothing that compares with Milestone for volume, quality, cost, location, infrastructure and political stability. There’s nothing that compares globally.”