Labor has accused New South Wales Premier Mike Baird of dodging questions about his Government's talks with a Chinese company over the partial privatisation of the state's power network.

But Mr Baird said he would not engage in "diary bingo" and rejected suggestions he held a secret meeting with the president of Chinese Government-owned State Grid Corporation in China last year.

The company was described as a "likely buyer" of the state's electricity assets in a union-backed advertising campaign, which also criticised Treasurer Andrew Constance for meeting State Grid Corporation representatives last year.

Mr Baird's office rejected suggestions of the secret meeting which were made by federal Labor senator Sam Dastyari in Parliament.

However, the Premier did address an investor roundtable event hosted by the Australian Ambassador to China, which the company's president attended, Mr Baird's office said.

When asked for further information at a press conference this morning, Mr Baird said he would not provide details, before ending the press conference to attend another event.

Opposition Leader Luke Foley said Mr Baird was trying to "skate through to Saturday without facing the scrutiny his privatisation policy deserves".

He said Mr Baird had to answer questions about the meetings, including possible national security implications and what he would do if he was unable to raise the money the Government was expecting from the power network leases.

"He just has to front up between now and Saturday, get his spin doctors out of the way and face the music and answer the questions that [media] put to him," Mr Foley said.

"I don't think it's fair and reasonable that the Premier, who's had such a honeymoon - let's be honest, he's had such a honeymoon since he took over - can't and won't answer your questions.

"I mean it's whites of the eyes time now."

Earlier, Mr Baird said he would not go into the details of individual meetings, forums or "a whole range of investment discussions I may have had".

"Your job as premier, your job as treasurer is to get out and meet as many possible people as you can, and it could well be thousands as treasurer and premier," he said.

"And that's about investing back in this economy.

"I am not going to get in to diary bingo."

The Premier had been under pressure to reveal details about his contact with State Grid Corporation since Senator Dastyari addressed the issue in Parliament on Tuesday night, saying "the real story" of the power privatisation plan was "only starting to emerge".

He told the Senate that Mr Baird had failed to comply with requirements to publish diary disclosure summaries for his trip to China.

However, the Premier's office has provided a link to a "Post Mission Report", available on the site of the Department of Premier and Cabinet, which details the trip.

Foreign investment could raise security concerns: Senator

The NSW Coalition is seeking a mandate at the state election this Saturday for the long-term lease of the grid, and is being strongly opposed by Labor and the unions.

Labor senator Sam Dastyari told Parliament Mr Baird had not complied with diary disclosure requirements. ( AAP Image: Lukas Coch, file photo )

Mr Dastyari said the NSW Government was not telling the full truth about its discussions with State Grid Corporation.

"I put it to this chamber, to the people of New South Wales and to Mr Mike Baird: why are there no records?" Mr Dastyari told the Senate.

"Why are there no records of who he met? Why are there no records of what he discussed? Why have we been left completely in the dark?"

The corporation provides power to 88 per cent of China and has 1.5 million employees.

A spokesman for Mr Baird said: "Clearly, if we proceed to a bidding process and there are overseas bidders involved, in order to be successful they would need to be cleared by the Foreign Investment Review Board, as has been the case for many years."

Mr Foley said voters could not rely on the board to prevent the sale to foreign interests.

He also said voters deserved to know what would happen if Mr Baird could not get the price he was expecting for the network.

"Which projects will he ditch? Perhaps this explains why he so desperately wants to find a buyer," he said.

"Perhaps this explains Mr Constance's secret meeting with the China state power grid. Perhaps it explains the fact that the president of the China state power grid met Mr Baird when Mr Baird was in China."

Senator Dastyari said the Foreign Investment Board's first consideration would be national security.

"The security agencies, Mike Baird have to come clean between now and Saturday and please tell us what are their concerns," he said.

"This idea that somehow this purchase is going to simply happen solely based on price without other considerations just isn't true, and I think Mike Baird knows that."