KEYSTONE INDUSTRIES (PRIVATE) LIMITEDUEN 197201738D Copy ?Singapore's unique identifier for an entity in the public record. Learn more Status: InactiveSingapore Company details Company type?The legal or entity type recorded by the relevant source. Learn more Local Company Registration date11 Dec 1972 SSIC code?Singapore's classification code for a company's principal business activity. Learn more 20229 — MANUF PENS, PENCILS, STENCILS, ETC Secondary SSICMANUF PENS, PENCILS, STENCILS, ETC Data sources Company records