On 4 October 2016, the Cabinet Secretary for Economy and Infrastructure made an Oral Statement in the Siambr on: The M4 Corridor around Newport Project (external link).
Ar 4 Hydrefi 2016, gwnaeth y Ysgrifennydd y Cabinet dros yr Economi a'r Seilwaith Ddatganiad Llafar yn y Siambr ar: Prosiect Coridor yr M4 o gwmpas Casnewydd (dolen allanol).