By Jacob Miley

June 4, 2017 - Workers at Oaky North Coal Mine will take further industrial action next week against Glencore.

Tools will stay down amid ongoing conflict between the Mine and Glencore over a proposed enterprise agreement.

CFMEU Mining and Energy Division District Vice President Chris Brodsky said the mining company's proposed agreement would remove workers' access to workplace representation in some cases, among a range of other issues.

"So far there has been little movement from Glencore and they are continuing to insist including unreasonable terms in any replacement enterprise agreement," Mr Brodsky said.

According to the Mr Brodsky, the CFMEU understands Glencore is attempting to pressure contractors and workers to perform the work of the employees that are taking lawful industrial action.

He said he had received complaints directly from employees engaged by contractor HD Mining that had been threatened, including with "termination of their employment”.

"The CFMEU is aware that threats have been directed at workers and contractors in circumstances where those workers have worked at the Mine performing other duties on an ongoing basis,” he said.

"Pressure has been directed at those workers to perform the work of those on lawful industrial action.

"That is a deplorable situation and should it continue the CFMEU will look at all available options to hold Glencore, and contracting companies, to account."

"This is just another example of poor treatment by Glenore of its workforce.

"Contracting firms such as HD Mining should not allow themselves to be complicit in this behaviour by Glencore. "

However, a Glencore spokesperson refuted the claims made by the CMFEU and said the union was continuing to mislead its members and the public with more "false claims”.

The spokesperson said the claims were "disrespectful to employees”, as they are not being supplied with "truthful information” by union officials regarding detail of the proposed changes to the Enterprise Agreement.

"We have respected our workforce's legal right to take protected action during the negotiation of a new EA and we have a legal right to run our business during this action,” a statement from Glencore said.??

"We have already publicly rejected a large number of inaccurate CFMEU claims in relation to the current EA negotiations and provided the facts, none of which the union has subsequently challenged.