SM Group was among the first to develop and manufacture Combustible Cartridge Cases in India for Tank and Artillery Guns and to pioneer the concept of Modular cartridges. SMPP has been closely associated with HEMRL (High Energy Materials Research Laboratory), which is a part of DRDO (Defense Research & Development Organisation), and Ordnance Factory Board (OFB), Ministry of Defense, Govt. of India.

SMPP is the only company to receive the prestigious NATIONAL AWARD for Indigenisation of Combustible cartridges from Ministry of Defense, Govt. of India. It has certified manufacturing facilities for: