“Mainspring” LLC was founded in 2008 conducting activities of foreign and domestic trade. Since 2013, we have established raw rubber manufacturing factory and been supplier of the Erdenet Mining Corporation.
Our company has been providing services on construction, interior decoration, landscaping, reinforced concrete, wood and masonry structure construction, expansion and renovation, installation of lighting, power and communications systems, alarm and internet networks, fire alarm systems and their equipment as approval of activities listed in License given by Ministry of Construction and Urban Development.

We are one of the national construction companies operating in the Mongolian construction sector. Our company has been providing our best services in construction, electrical and communication systems.
It is imperative to comply with the applicable laws and regulations of Mongolia, as well as requirements of the International Quality Management System including ISO 9001: 2008, OHSAS 18001: 2007, OHSAS 18001: 2007, and the ISO 21500 to provide such services.
We have more than 30 employees including consultants, electrical engineers, telecommunications engineers, construction engineers, and mechanic engineers. We’re proud of our construction and marketing professionals and being national tax payer.
DESCRIPTION
Specification
name ” Mainspring ” LLC
State registration number 2011009067
Registration number 4375092
Private property type: located in Orkhon aimag, Bayan-Undur soum, Khurenbulag bag 4-14-77
PO Box, contact 77358609, 99113632,88111560
Main activity: Construction, Raw Materials Manufacture
Year of Establishment: 2008.04
OUR GOAL
Our main goal is to become high level, qualified supplier providing flexible relations with clients and other domestic partners which install all kinds of construction and electrical equipments.
We provide our customers the highest qualified products and services, while pursuing the highest standards of fair competition, also aim to become one of the leading companies which contributes to Mongolia’s development.
We are looking forward to cooperating with other companies in order to providing high standards.
EXPERIENCE
“A” apartment block of “ELITE” campus full interior work is completed which includes sauna, shop, dining hall, and the 48 households interior within 8 months and got approval from the state commission.
Hotel base of the “АМАРСУ” restaurant of “Pearl Suvarga” LLC, and building basement with double assembly and also full interior was performed.
In 2018, “Erdenet Store building 4th and 5th floor interior, ventilation and electricity work performed.
MRCS’s children and youth development center 1th floor construction and interior was performed in Erdene soum of Tuv aimag
Construction work has being performed in Uurkhaichin 1 building of the Erdenet Mining Corportation
Address: Orkhon, Bayan-Ondor soum Khurenbulag bag, Street No. 4-14-77
Phone: + 976-77358609
+ 976- 99113632
+ 976- 88111560
E-mail: dembrel@mainspring.mn