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 relating to disputes dealt with by the Monmouthshire and South Wales Coal Owners Association, comprising mainly dispute books containing tabulated information on general disputes in both associated and non-associated collieries, and stoppages without notice. Also included are documents relating to wage disputes in particular, as well as disputes relating to employment conditions in specific collieries.