Mae gan Gymru hanes hir o weithio gyda'r sector niwclear o'r adeg pan agorodd Trawsfynydd ym 1965, ac mae yma nifer o fusnesau arbenigol sy'n darparu ar gyfer y sector.
At the point when construction of the Hinkley Point C nuclear plant in Somerset nears completion, this MOU sets out the opportunity for Welsh businesses to be part of the supply chain for the next build at Sizewell C.