WILMAR Sugar continues to be the butt of Australian ire for their failure to broker a deal with Queensland Sugar Limited and allow growers to use the single desk entity to market the grower economic interest in their sugar before the price nomination date in late February.

In mid-December last year Leader of the Opposition in the Queensland Parliament, Tim Nicholls sent a letter to Kuok Khoon Hong the Chairman and CEO of Wilmar Sugar stating "urgent intervention" was needed to resolve the long standing impasse on the finalisation of cane supply and on-supply agreements.

Following suit last week his counterpart the acting leader of the opposition and member for Nanango, Deb Frecklington, has written her own letter to the Wilmar boss Mr Kuok.

She is the latest to join in vocal criticism of Wilmar, others who have had a go at the miller on behalf of their constituents include Michelle Landry the member for Capricorn, the member for Burdekin Dale Last, who also wrote his a letter to Wilmar in November and Dawson's own George Christensen.

"Everyone is sick of this and it needs to end," she told Mr Kuok. Included in the release issued to the media - as well as Canegrowers, Mr Joyce and Mr Last - by Ms Frecklington was a response to Mr Nicholls' letter penned by Wilmar boss Mr Kuok.

Ms Frecklington implied Wilmar had no respect for local producers.

"Mr Kuok needs to understand and accept that this is not about to change," she said.

A spokesperson for Wilmar said Mr Kuok had answered letters written by Mr Last and Mr Nicholls and it he would also answer Ms Frecklington's letter.

For growers the race is on to finalise CSAs before the price nomination date made by QSL.

Before February 28 growers need to tell their sugar marketer where they will commit their sugar.