Supply of Drilling and Decommissioning of groundwater monitoring boreholes services

Oyu Tolgoi” LLC (the 'Company') would like to invite potential and/or experienced suppliers who are certified in groundwater drilling to submit their Expression of Interest (EOI) in relation to the supply of “Drilling and Decommissioning of groundwater monitoring boreholes services”.

[An EOI is only a preliminary step to a formal tender process to understand and identify whether there are potential suppliers in the market that are interested in and capable of satisfying the procurement needs]

Scope description:

The supplier will be required to carry out all, but not limited to, the following work:

  • Drilling and installation of the new groundwater monitoring boreholes inside and outside of the Oyu Tolgoi Site area; and
  • Sealing of existing boreholes inside the Tailing Storage Facility (TSF) area on-site.

Interested and experienced suppliers are invited to submit their EOI with include/attach, as a minimum, the following documentation / information:

Mandatory documents:

  • State registration certificate (copy)*
  • HSE policy & procedures (copy)*
  • Business Code of Conduct (copy)*
  • Audited Financial statement from last 3 years (copy)*
  • Brief introduction of company (copy)*
    • Ownership/ shareholder information such as Company charter (copy)*
    • Executive team structure/ introduction (copy)*
    • Organization structure & Total manpower (copy)*

* If latest copies are already uploaded in “Oyu” Supplier Database, please make a note in the submission document(s) and no need to re-submit.

Scope specific documents:

  • Scope specific experience
  • Customer reference (at least 2) if applicable
  • Special license certificate for water well drilling
  • Proof of technical capability and capacity of performing services
  • Water well driller’s certificate; and
  • Any other additional scope specific documents if applicable

Any interested suppliers who wishes to participate in the EOI, must be registered in “Oyu” supplier ddatabase. If you have not registered in “Oyu” database, please register at

EOI documents must be prepared in Mongolian and/or English and must be submitted via “Oyu” Supplier database before 5pm, (Ulaanbaatar time) 08 November 2021.

Important notice:

  • The Company is only seeking Expression of Interest from potential suppliers and makes no representation or promise in relation to procuring work from a supplier or suppliers.
  • The Company reserves the right to refuse any document(s) which is incomplete or submitted after the specified date & time.
  • The Company will not accept any EOIs stored in internet storage or in any other webpages and links.
  • The Company will not be responsible for any costs associated with preparing and submitting an Expression of Interest to the Company.
  • There will be no Questions and Answers provided during the EOI process.