Fertilizer company Potash is not considering a large stake sale to a third party or long-term production sharing agreements as serious options to block a sale to BHP Billiton, investors who met with the company said on Tuesday.

Potash Chief Financial Officer Wayne Brownlee was in New York meeting with investors on Monday and Tuesday ahead of a presentation at a conference on Wednesday morning, the investors said.

The investors spoke on the condition of anonymity. They said Brownlee also echoed previous company statements on the strong fundamentals and prospects of the business.

Investors said he reiterated earlier Potash statement that the company has been in talks with third parties about alternative transactions to the BHP bid.

Last month, BHP launched a $39 billion hostile bid for Potash as the Anglo-Australian miner looks to become the world's largest fertilizer company.

Potash declined to comment.