The only countries of substantial importance from the point of view of the United Kingdom coal trade which directly restrict the importation of coal are France, Belgium and Germany. There is no international agreement which limits the right of France and Belgium to impose such restrictions, and the right to apply import restrictions to coal was reserved by Germany under the Anglo-German Commercial Treaty of 1924. I should perhaps add that certain countries, notably Brazil and Spain, whilst not directly controlling importation, enforce requirements that industrial users of coal must consume certain proportions of native coal.
The Noble Lord will observe that the latter part of my answer referred to the quota system which is in operation in Brazil and Spain. The quota system is being considered here.