Underground Construction Support Services

Oyu Tolgoi” LLC (the 'Company') would like to invite all potential experienced contractors to submit their Expression of Interest in relation to performance of “Underground Construction Support 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]

The contractor will be required to carry out all of, but not limited to, the following works:

Scope description:

The scope of this EOI is to provide Construction Support Services for the Oyu Tolgoi Underground Project including the provision of all labor and other necessary support.

The nature of the work is small scale construction activities that have been excluded from the major underground construction packages which are provided for by others.

The scope comprises the planning and execution of both scheduled construction activities to support mine development that is well defined, and ad-hoc construction activities on an ‘as needed’ basis.

Interested and experienced suppliers are invited to submit their EOI by attached “EOI submission checklist” and must include/attach, as a minimum, the following documentations / information:

Mandatory documents:

  • State registration certificate (copy)*
  • HSE policy & procedures (copy)*
  • Business Code of Conduct (copy)*
  • Brief introduction of company
  • Ownership/ shareholder information
  • Executive team structure/ introduction
  • Organization structure & Total manpower

* - If latest copies are already uploaded in Oyu Tolgoi Supplier Database (SQMS), please make a note here

Scope specific documents:

  • Scope specific experience
  • Customer reference (at least 2)
  • Special licenses, if applicable (copy)

Any interested supplier who is not registered in Oyu Tolgoi Supplier Qualification and Master Supplier (SQMS) Database must register at and must provide the registration ID on the “EOI submission checklist”.

EOI submissions can be prepared in Mongolian or English and must be sent to with subject “CW2110250 Underground Construction Support Servicesbefore 5pm, (Ulaanbaatar time) 20 November 2017.

Important notice:

  • The Company is only seeking Expression of Interest from potential contractors and makes no representation or promise in relation to procuring work from a contractor or contractors.
  • The Company reserves the right to refuse any document(s) which is incomplete or submitted after the specified date and 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 accepted nor answers provided during the EOI process.