Clyde Agriculture has been 100 per cent owned by Swire since 1988.

The company owns and operates 13 properties in northern NSW and one in Queensland.

The group comprises Clover Downs in Queensland, and Janbeth, Latoka, Beemery Farm, Rumleigh, Wingadee, Netherway, Pier Pier, Oxley, Merrimba, Bundemar Park, Wirribilla and Lakeside in NSW.

The properties produce wool, prime lambs, cattle, cotton and grain.

The grazing lands total 264,153 hectares, with a carrying capacity of 467,500 dry stock equivalents.

The irrigated properties covering 8984ha and come with water storage totalling 56,000 megalitres.

The company also includes Darling River Cotton Pty Ltd, which operates a cotton gin at Bourke.

Chairman Bill Rothery said Swire was divesting Clyde Agriculture to concentrate on the core business of the company, which was increasingly in the transport, logistics and industrial services sector.

"Swire Pty has a strong focus on cold storage and distribution, and significant investments in materials handling, particularly industrial waste and recycling," Mr Rothery said.

"Swire Pty remains committed to Australia. The company has a strong portfolio of leading businesses and sees Australia as a stable and growing market in which to re-invest following the sale of Clyde.

"The decision to sell Clyde now is based on an exceptional confluence of factors, including excellent seasonal conditions, high commodity prices, and increasing Australian and international investor interest in Australian agriculture."

The sale of the properties will occur as a tender process, with expressions of interest to be invited by mid April.

The sale is of the entire portfolio, however the company said proposals to buy individual assets or groups of assets would be considered.

It is expected the sale will be completed by early July.