Guide · Updated: October 22, 2026 · 6 min read

Documents for tender participation in Uzbekistan: the full list

The most common reason a bid is rejected is not the price but the documents: a certificate is missing, a licence has expired, the wrong form was used. Below is what almost every lot requires, what depends on the procedure and the subject of the purchase, and how to keep your package ready so you can submit a bid in an hour rather than a week.

1. The basic package: needed almost always

Certificate of state registration of the company (or of a sole trader) and an extract from the register with up-to-date details.
Charter and a document confirming the director's authority (order or minutes of appointment).
Certificate of no tax arrears — issued by the tax authorities via my.soliq.uz (the State Tax Committee portal); it has a validity period, so renew it before every submission.
Bank details and, if required, a bank letter confirming that you hold an account.
Confirmation that you are not on the register of unscrupulous contractors — the buyer checks this itself, but your bid must confirm it.
ESI (E-IMZO electronic digital signature) — not a document in the package, but you cannot submit a bid without it.

2. Documents that depend on the subject of the purchase

Subject of the purchase	What is usually required
Construction and repair works	A licence for construction activity, details of staff and machinery, experience of similar works, sometimes an equivalent of self-regulatory organisation (SRO) membership and permits
Medicines and medical devices	A pharmaceutical licence, registration certificates for the products, quality certificates
Food products	Certificates of conformity, sanitary and epidemiological reports, documents of origin
Equipment and machinery	Certificates of conformity, warranty obligations, manufacturer's documents or a dealer letter
IT and software development	Portfolio and implementation experience, details of specialists, software licences, sometimes information security certificates
Services (security, audit, design)	A licence for the relevant activity, experience of similar contracts, staff qualifications

The exact list is always in the lot documentation — that is the first thing to open. Tanlo tender analysis puts the participant requirements into a separate list, so you don't have to hunt for them across 40 pages of technical specifications.

3. The bid documents themselves

Application to participate — on the platform's or the buyer's form, with your consent to the terms of the purchase.
Commercial proposal — price, delivery terms and deadlines, payment terms; prepared on the company letterhead.
Technical part / specification — the characteristics of the goods offered or a description of the works, strictly in line with the technical specifications, without “equivalent” wording.
Power of attorney — if the bid is signed by someone other than the director.
Letter of guarantee — confirms that you are ready to deliver on time and on the stated terms; buyers often require it as a separate document.
Bid security — an amount blocked in your personal account on the platform, or a bank guarantee; for the winner, there is also contract performance security.

Tanlo can draft the application, power of attorney, letter of guarantee, commercial proposal and technical specification automatically from your company's details and the specific lot — you only need to check the drafts and sign them.

4. How to keep your package ready

Create a folder with up-to-date scans of your incorporation documents and keep track of when your certificates and licences expire.
Fill in your company profile once — bank details, director, bank, OKED code (national classifier of economic activities) — and use it for every bid.
Renew your tax certificate before every submission: an expired certificate means rejection.
Check that the company name, TIN (taxpayer identification number) and signatory match in every document.