1,000 extra people were unemployed in the three months up to February, according to figures from the Office of National Statistics (ONS).
The total number of people out of work in the period stood at 131,000, a rate of 8.9%.
600 more people were claiming Jobseeker's Allowance compared to last month's figures. The overall rate stayed the same at 5.6%, putting Wales 0.7 points above the national average.
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Tata UK's chief executive told ITV News they have great faith in the Port Talbot workers helping to make the company a success.
First Minister Carwyn Jones told ITV News the deal between Tata and the unions
Steel unions say Tata Steel has made a commitment securing the future of jobs and production at Port Talbot and other UK sites.