Unions were concerned about Tata's plan to close blast furnaces, potentially costing 3,000 jobs, in favor of an electric furnace for decarbonization.
An independent report recommending a longer transition and fewer job losses was presented and will be considered by Tata.
The meeting eased initial shock, with Tata showing a willingness to negotiate.
The plant is Wales's largest carbon emitter, and Tata secured a £500 million UK government grant for its £1.25 billion decarbonization plan.
Tata Steel remains committed to greener steelmaking and will engage in consultations with unions after considering the independent report.