Mae rhyw 90 o fusnesau o Gymru wedi ymgasglu yng Nghaerdydd i ddysgu am y cyfleoedd cyffrous y bydd cynllun Heathrow yn eu cynnig i'r gadwyn gyflenwi.  Disgwylir y daw â hyd at 8,400 o swyddi crefftus newydd a hwb o £6.2bn i'r economi.
Around 90 Welsh businesses have gathered in Cardiff to learn more about the existing supply chain opportunities and future associated with the Heathrow expansion which is expected to deliver up to 8,400 new skilled jobs and £6.2bn in economic growth in total.