25 pdr propellant manufacturers

[Dado]

Hello everyone. I'm compiling a list of propellant manufacturers for 25-pound launch charges. I'd like to share my findings so I can make corrections and fill in any gaps. Thanks for your help!

VC - Canadian Industries Limited (Canada)
OC - Olin Corporation (dal 1944 Olin Industries Inc.) (USA)
WAC - Royal Gunpowder Mills, (Waltham Abbey, Essex, GB) closed in 1943 due to the transfer of its production to other factories in the western part of the country
CEW - Central Engineering Works (Sud Africa)
MA - Merseyside Ammunition Works (Fazakerley, Liverpool, GB)
OK - Maribyrnong (Australia)
MS - Salisbury (Australia)
JOW - This is probably John Owen directly connected to Eley Brothers which in turn is part of Nobel Industries Ltd
T - ROF Thorp Arch (West Yorkshire, GB)
NK - Nobel-Kynoch (ICI) (Birmingham, GB)
MC - Finsbury, Adelaide, Australia
KA - ?
RC - ?
D - ?

 

[Darkman]

Propellant manufacturers or filling factories? The stencils on ammunition boxes refer to the filling factory monogram and the nature of the propellant.

Maribyrnong, Australia was not a filling factory - it was an ordnance factory (steel forging and gun manufacture) and its monogram was MO.
Salisbury, South Australia (MS) was a filling factory.
Finsbury, South Australia (MC) was an ammunition factory (cart cases and fuzes).