The KIGL works at Guwahati seen from outside, with plant vessels behind the boundary

Approvals and licences

The licence numbers, so you can check them before you ask

Industrial gas is a licensed trade. Filling a cylinder, storing carbide, keeping acetone and marking a generator each need their own permission from a different authority. Every number below is transcribed from the issued document, with the authority that granted it and what it actually permits.

6
Statutory licences held
IS 8471
BIS Standard Mark, to 2031
79
Years licensed to manufacture

Licences and approvals

Numbers are given exactly as the issuing authority writes them, because that is the string a purchase officer checks against the register.

Licence Number Authority Valid to
BIS Standard Mark licence — acetylene generators Manufacture of acetylene generators to IS 8471 (Parts 1 to 5), with the Standard Mark 146 Andul Road, Howrah 711103, West Bengal CM/L-0005405354 BIS 30 September 2031
PESO licence — dissolved acetylene filling and storage Filling of dissolved acetylene into cylinders, and storage of filled cylinders Guwahati works, Noonmati, Kamrup (Metro), Assam 781020 G/HO/AS/05/2 & G/HO/AS/06/2 PESO On request — see below
PESO licence — oxygen filling and storage Filling of oxygen into cylinders at six filling points, and storage of filled cylinders Guwahati works, Narangi, Kamrup (Metro), Assam 781020 G/HO/AS/05/7 & G/HO/AS/06/6 PESO On request — see below
PESO licence — calcium carbide storage Storage of calcium carbide, the raw material for acetylene generation North Guwahati, Kamrup, Assam 781020 C/HQ/AS/4/1002 PESO 31 December 2026
PESO licence — petroleum Class A storage (acetone) Storage of acetone, the solvent that makes a dissolved acetylene cylinder possible Noonmati, Guwahati, Kamrup (Metro), Assam 781020 P/EC/AS/16/214 PESO 31 December 2026
Factory licence, Government of Assam Registration and licence to work a factory manufacturing gases Refinery site, P.O. Noonmati, Kamrup (Metro), Assam 781020 KAM/68/E-525079 Govt. of Assam 31 December 2027

Two entries carry no date. The most recent renewal letter on file for each has passed its validity and the current one is not published here yet, so rather than show a lapsed date the entry gives the number and the scope. Ask us and the current letter is sent. A date we cannot stand behind is worse than no date at all.

Company registrations

RegistrationNumber
Corporate Identification Number (CIN)U24111WB1984PLC037478

What each licence actually permits

BIS Standard Mark on acetylene generators

Licence CM/L-0005405354 permits KIGL to apply the ISI Standard Mark to acetylene generators manufactured to IS 8471 Parts 1 to 5, and runs to 30 September 2031. This is a different claim from designing to a standard. A BIS licence means the Bureau has assessed the factory, the process and the testing, and that the mark on the machine is backed by a licence number anyone can look up. For a buyer specifying an acetylene gas plant against an Indian tender, it is the document that matters.

PESO licences at the Guwahati works

Acetylene is filled and stored under Forms E and F of the Gas Cylinders Rules, 2016, first granted in 1984. Oxygen is filled under its own pair of licences at six filling points. Two further licences cover the materials rather than the gas: calcium carbide under the Calcium Carbide Rules, 1987, and acetone, the solvent that makes a dissolved acetylene cylinder possible, as a petroleum Class A storage under the Petroleum Rules, 2002. Four separate permissions, four separate inspections, for one product leaving the gate.

Factory licence

The Guwahati works is registered and licensed to operate as a factory manufacturing gases under the Factories Act, 1948, by the Chief Inspector of Factories, Assam, to 31 December 2027.

Why we publish the numbers

Because the alternative is asking you to take it on trust. Any supplier can write "PESO approved" on a page. The number, the authority and the scope are what let you check it against the register before you shortlist us, and they are what your technical bid will ask for anyway.

Certified copies go out with quotations as a matter of course. If you need them before that, for a pre-qualification or a vendor registration, ask and they will be sent the same day.