Material related to the work of a number of Monmouthshire and South Wales Coal Owners Association committees including the Joint Emergency Committee, Commercial Committee, Coal Cutters & Conveyers Committee, Coal Dust and General Research Committees, Anthracite & Steam Coal Collieries Committee, Eight Hours Committee, and the Education Committee, amongst others. Material comprises mainly minutes and reports.

Material related to the work of many Coal Owners Association joint committees, including the following: Joint Sliding Scale Committee; Enginemen Wages Committee; Joint Standing Disputes Committee; Enginemen's Association; South Wales Coal Shipment Advisory Committee; South Wales Committee on Physical and Chemical Survey of the National Coal Resources; Joint Committee representing the Safety in Mines Research Board, Colliery Owners, Mining Engineers, Workmen, H.M. Inspector of Mines, Colliery Managers; South Wales Area Committee of the Coal Utilization Council; Disputes Finality Committee and the Joint Coal Production Committee. Material comprises mainly minutes of proceedings, résumés, notices and agenda.

Fuel research reports produced by the staff of the Coal Survey Laboratory at the School of Mines, Treforest. Research work centered on surveying the Nine Feet Seam in the South Wales coalfield through examination and sampling. The work of the Coal Survey Laboratory was directed by the Local Coal Survey Committee (South Wales), set up under the Department of Scientific and Industrial Research. Material consists primarily of analyses of samples taken from various seams worked in South Wales collieries, and often includes sketch maps of sample locations, a report on the fusion point of coal ash, and related letters and correspondence. Reports on other related topics, such as hydrogenation of South Wales coals, spontaneous combustion, and the breakage of coals are also included.