Funding is being sought to restore the iconic Powerhouse building
An historic Blue Plaque has been dedicated to the 1910 Tonypandy riots.
Troops were deployed to restore order after striking miners tried to stop work at the Ely pit in Llwynypia.
The plaque will be kept safe by the Rhondda Powerhouse Trust until the premises in Llwynypia are restored.
Trust chair David Birch said: "It is a great honour to receive the Blue Plaque and we look forward to unveiling it on the building once it is in a fit state to receive it."
"The trustees of Rhondda Powerhouse are awaiting the outcome of our grant bids in the hope that work can begin on this magnificent building as soon as possible."
Rhondda £49,200 of Heritage Lottery funding has been awarded to fund the Blue Plaque scheme in Rhondda Cynon Taf.
Rhondda Cynon Taf council won £49,200 of Heritage Lottery funding for a Blue Plaque scheme and is working with local groups and individuals to identify suitable 30 sites which have yet to be recognised for their historical and cultural significance.
The Tonypandy Riots represent a significant moment in Welsh industrial history.
On August 1 1910, 800 miners were locked out of Ely pit, part of the Cambrian network of collieries, in a dispute over wages.
The Tonypandy riots followed a lockout of 800 miners in a row over wages
Managers at the pit protected the colliery and powerhouse with around 100 policemen as power was maintained by 60 strike-breaking 'blackleg' stokers and colliery officials.
The lockout prompted at other Cambrian collieries coming out on strike in sympathy with their colleagues.
The situation came to a head in November when striking miners attempted to enter the colliery and shut the powerhouse down.
Rioting broke out and the Home Secretary Winston Churchill sent in troops to support the police in their attempts to restore order.
Over 500 people and 80 policemen were injured during the disturbances - one miner died of head injuries reportedly received from a policeman's baton.
The strike eventually ended a year after it began when miners returned to work after accepting a small pay increase.