More than 600 workers chanting anti-government slogans gathered outside the management's building, ILNA added.
The workers threatened to have their next gathering outside mullahs' Majlis (parliament) should they not receive positive responds to the protests soon.
The workers went on strike on April 12 for the first time when the hand picked management called in the suppressive State Security Force (SSF) – mullahs' suppressive police – to crush their demonstration. A number of the workers were arrested in that incident.
In the past year, thousands of workers employed by government owned factories and workshops have gone on strike over their pay disputes.
Five thousands workers of Haft-Tapeh Sugar Cane factory have been on strikes like the Kiyan-Tire workers since last March. However, the mullahs' regime is refusing to settle row over salaries and wages with the workers.