Gretna Explosives Factory

They shipped the precious acetone to the Gretna explosives factory located in Scotland, outside of German bomber range. 

The position was critical but eventually a tremendous expansion of production took place and in a short time many new explosives and propellants plants were designed and built. Waltham Abbey raised its cordite output first to 140 tons and then to 200 tons/week while private industry expanded production to about 1300 tons and the great new government factory at Gretna was making a further 1000 tons/week by 1917. TNT manufacture had to be increased to match the total of 42,000,000 shells produced during the four war years and 230,000 tons of TNT in all were produced by the national explosives factories. 

W. Macnab, "Preliminary Studies for H.M. Factory, Gretna, and Study for an Installation of Phosgene Manufacture", Ministry of Munitions, Dept, of Explosive Supply, HMSO, London, 1926. 

Preliminary Studies For H. M. Factory, Gretna and Study For An Installation of Phosgene Manufacture, Ministry of Munitions, Department of Explosive Supply, London. 

---