Tata Steel is to cut 1,050 jobs from its steelworks in Port Talbot and Llanwern in South Wales.
The latest round of redundancies in the steel industry follows an earlier 250 job cuts at the Llanwern plant in August, followed by another 1,700 dismissals at the SSI steel factory in Redcar in September.
In December, a committee of MPs accused the UK government of failing to take action to prevent the downturn in the UK steel industry following earlier concerns raised by the steel industry about the state of the sector.
Unions have responded negatively to the redundancies, arguing that more should be done by the government to prevent further decline.
The Community Union, which represents UK steel workers, said: “[This] is yet another chapter of the UK’s ongoing steel crisis and the lack of a proper government response.
“This industry needs meaningful action from the UK Government which up to now has been characterised by fast talking but slow delivery, despite persistent warnings from Community that delays in implementing support for steel would have an impact on jobs.
“Even now, promised compensation for energy intensive industries is yet to be received. The UK Government must step up and work with trade unions and businesses to ensure this industry exists for generations to come.”
Community went on to note that one of the major crises currently facing the UK steel sector was the availability of cheap exported steel from China that was having a dramatic downward effect on wholesale prices.
Many contractors and service firms also rely on the plants, which may result in additional, indirect redundancies sustained across the local areas.
A Business Department spokesman said: "The Government continues to engage closely with Tata on how we can help during this difficult period for the sector.
"The Government has taken clear action to help the industry, through cutting energy costs, taking action on imports, government procurement and EU emissions regulations, meeting key steel industry asks."
Tata has declined to comment on the job cuts.