Mae porthladdoedd yn cyfrannu'n helaeth iawn at economi Cymru, gan gynnal tua 11,000 o swyddi a gweithredu fel canolfan economaidd a phorth i fasnachu gydag Ewrop a gweddill y byd.
Ports make a huge contribution to the Welsh economy, supporting around 11,000 jobs and providing an economic hub and trade gateway with Europe and the rest of the world.