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Oyu Tolgoi LLC operates one of the world's largest new copper-gold mines, located in the South Gobi region of Mongolia, approximately 550 km south of the capital, Ulaanbaatar, and 80 km north of the Mongolia-China border. The Oyu Tolgoi mine is a joint venture between Rio Tinto (which holds a 66% interest through its wholly-owned Canadian subsidiary, Turquoise Hill Resources) and the Government of Mongolia (which holds the remaining 34% interest through Erdenes Oyu Tolgoi LLC). The project encompasses both open-pit and underground mining operations, with the underground mine representing a significant expansion and the future of the operation. Oyu Tolgoi is a major contributor to the Mongolian economy through employment, taxes, royalties, and local development programs. It is set to become one of the top five copper producers globally once the underground mine reaches full production.
The Ulaanbaatar headquarters serves as the central hub for corporate management, strategic planning, finance, human resources, legal affairs, external relations, and stakeholder engagement for Oyu Tolgoi's operations.
The headquarters is located in Monnis Tower, a modern, prominent office building in Ulaanbaatar, equipped with contemporary facilities conducive to a corporate environment.
The work culture at Oyu Tolgoi's headquarters is professional and performance-driven, influenced by Rio Tinto's global standards. It emphasizes safety, operational excellence, sustainability, and collaboration, fostering a mix of international expertise and Mongolian talent.
The Ulaanbaatar headquarters is crucial for managing complex mining operations, liaising with government bodies and national stakeholders, overseeing financial performance, and coordinating Oyu Tolgoi's contribution to Mongolia's socio-economic development.
While Oyu Tolgoi's physical operations are based entirely in Mongolia, its impact is global. It is one of the world's most significant copper and gold deposits, and its output plays a crucial role in the global supply chain for these metals, primarily serving markets in Asia. Through its majority owner Rio Tinto, Oyu Tolgoi is connected to a global network of mining expertise, technology, safety standards, and financial markets. The project attracts international investment and attention, highlighting Mongolia's position in the global mining industry.
Monnis Tower, Chinggis Avenue-15, Sukhbaatar district, 1st Khoroo
Ulaanbaatar
Ulaanbaatar
Mongolia
Address: Oyu Tolgoi Mine Site, Khanbogd soum, Ömnögovi aimag, Mongolia
To conduct all mining and mineral processing operations. It also serves as a major hub for employment in the South Gobi region, supporting local communities through various development initiatives and providing essential services for its large workforce.
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As of April 2025, Oyu Tolgoi' leadership includes:
Oyu Tolgoi has been backed by several prominent investors over the years, including:
No specific publicly announced executive changes directly within Oyu Tolgoi LLC's top-tier team in the last 12 months (approx. May 2023 - May 2024) were identified through public searches. The current senior leadership team appears largely stable following the appointment of CEO Deirdré Lingenfelder in September 2022.
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Oyu Tolgoi LLC, as a major international joint venture, likely utilizes standardized professional email formats. Common patterns include a combination of first name and last name. The primary domain for Oyu Tolgoi employees is @ot.mn.
firstname.lastname@ot.mn or firstinitial.lastname@ot.mn
Format
john.doe@ot.mn
Example
80%
Success rate
Reuters • May 7, 2024
Rio Tinto has approved a $77 million investment to build a new solar power plant at its Oyu Tolgoi copper mine in Mongolia. The 60-megawatt (MW) plant aims to reduce the mine's carbon footprint and operational costs by supplying sustainable power....more
mining.com / Rio Tinto • April 17, 2024
Rio Tinto reported a significant 36% year-on-year increase in mined copper production from its Oyu Tolgoi mine in Mongolia for the first quarter of 2024. This growth was attributed to the continued ramp-up of the underground mine and higher concentrator feed....more
ot.mn (Oyu Tolgoi Official Website) • March 14, 2024
Oyu Tolgoi announced that it paid a total of $484 million (equivalent to MNT 1.6 trillion) in taxes, fees, and other payments to the Government of Mongolia in 2023. The company's 13th annual report details its financial contributions, emphasizing its role in Mongolia's economy....more
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