More than 500 Tahmoor mineworkers and supporters will take to the street today in protest over mining company Xstrata's refusal to promise job safety and security.
For the past 15 months Xstrata has knocked back a proposal to put together a job safety and security deal, finally resulting in industrial action from its workforce.
Today, the coalminers will take part in a 24-hour stop-work as they march along Remembrance Driveway from 10.30am.
The Construction, Forestry, Mining and Energy Union (CFMEU) vice-president Wayne McAndrew will address the protesters at 11am outside Tahmoor Anglican Church.
Mr McAndrew said the aim of the event was to get the message out to the local community about the effect on the workforce and their families.
"Tahmoor coalminers and their families are saddened at the fact that a big rich mining company is not prepared to guarantee job security and safety standards," Mr McAndrew said.
"Xstrata has racked up billions of dollars in profits off the backs of its workers here in our community of Tahmoor."
Mr McAndrew said people in the community could show their support for the Tahmoor miners and their families by signing a petition or by putting an Xstrata community hazard sign in their front yard.