Following the arrests of 13 people on october 6, at a demonstration in Sunderland, two men have been charged with being drunk and disorderly.
The two 32-year-old men are both due to appear before Sunderland magistrates court on October 26.
Eight men have been bailed after being arrested on suspicion of public order offences. Three others have been bailed after being arrested on suspicion of affray.
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The union claims the company is trying to push through a package which would threaten jobs, working conditions and safety.
The mum-of-two wrongly claimed income support, housing benefit and child tax credits between 2010 and 2014.
A 17-year-old boy was pronounced dead by paramedics at the scene while two other men were taken to hospital.