Resonance Specialties Limited engages in the manufacture and marketing of specialty chemicals in India and internationally. It offers pyridine, a chemical used in manufacturing agrochemicals, pharmaceuticals and bulk drugs, dyes, rubber chemicals, etc.; cyanopyridines that are applied in manufacturing of niacinamide; and picolines, including alpha, beta, and gamma picolines used in manufacturing vinyl latex rubber, vitamin B3, and anti-tuberculosis drugs. The company also provides nutritional drug products, such as zinc and chromium picolinate, chromium polynicotinate, niacin, and niacinamide; alpha picolinic and dipicolinic acids; solvents, including acetonitrile and valeronitrile; lutidines for anti-ulcer drugs; and collidines for omeprazole and other pharmaceutical products. The company was formerly known as Armour Polymers Limited. Resonance Specialties Limited was incorporated in 1989 and is based in Mumbai, India.