Mr Sergio Orrego > Urenda, Rencoret, Orrego y Dörr > Santiago, Chile > Lawyer Profile

Urenda, Rencoret, Orrego y Dörr
Sergio Orrego photo

Work Department

Corporate and M&A / Energy & Natural Resources / Mining / Projects and Infrastructure / Telecommunications.




With Urenda Rencoret (1986 – to date), partner since 1998. With Sullivan & Cromwell, New York (1991-1992). Has been ranked by Chambers and Partners, Legal 500, IFLR1000, Latin Lawyer 250, LACCA, Leaders League and Best Lawyers.


Spanish and English.


The Rocky Mountain Mineral Law Foundation; Chilean Bar Association; International Bar Association.


Master in Comparative Law (MCJ), New York University -NYU- (1991); Bachelor of Law, Universidad de Chile (1986).

Lawyer Rankings

Chile > Energy and natural resources > Mining

(Leading individuals)

Sergio OrregoUrenda, Rencoret, Orrego y Dörr

Urenda, Rencoret, Orrego y Dörr fields a seven-member mining team with longstanding experience in advising both domestic and international clients on mining projects. The group’s representative expertise covers mining title reviews, as well as the negotiation of agreements (such as purchase options), financings, joint ventures, explorations, royalties, streaming and easements. It also assists with reviewing titles to water rights, obtaining permits, and reclamation actions. The practice is led by Sergio Orrego, who assists with a broad range of mining transactions, while fellow name partner Gonzalo Rencoret regularly advises on mining projects. The next line of active practitioners features Rafael Rencoret (promoted to partner in January 2023), who maintains an active mining practice; while at associate level, Verónica Roa routinely drafts complex mining agreements and Javiera Vicuña advises on mining, water, energy, and corporate law matters.

Chile > Banking and finance

A member firm of both Multilaw and World Law Group, Urenda, Rencoret, Orrego y Dörr‘s nine-member banking and finance team has strong project finance credentials, particularly in relation to mining and energy projects. The team is also noted for its experience in debt transactions, derivatives, structured finance, and regulatory work. The practice is jointly led by infrastructure project finance expert Felipe Rencoret Portales, and Nicholas Mocarquer, who is notably active in the mining sector. Fellow partner Sergio Orrego also has longstanding banking and finance experience, while former senior associate Rafael Rencoret was raised to the partnership in January 2023.

Chile > Capital markets

The eight-strong team at Urenda, Rencoret, Orrego y Dörr houses specialists in both equity and debt markets’ work. Its expertise covers IPOs, debt certificate issuances and public tender offers. The group also advises publicly-held corporations and brokers on their interactions with the Securities Agency and the stock markets. The department is jointly led by securities specialist Felipe Rencoret, and Sergio Orrego, whose track record includes IPOs and tender offers. Gonzalo Rencoret and Nicholas Mocarquer are also active capital markets partners, while associate Isidora Zañartu assists with securities-related work.

Chile > Corporate and M&A

Delivering ‘great local support through a very full-service approach‘, Urenda, Rencoret, Orrego y Dörr‘s 21-member team is regularly mandated by significant domestic and international companies on M&A, joint ventures, shareholder agreements, and corporate restructurings, along with general corporate law assistance. Gonzalo Rencoret provides day-to-day assistance to large companies; Nicholas Mocarquer has extensive experience in M&A deals and public tender offers; the broad practice of the ‘outstandingSergio Orrego incorporates shareholder agreements and joint ventures; and Felipe Rencoret is similarly experienced in heavyweight transactions. Notable growth for the group includes the promotion of corporate and M&A practitioner Rafael Rencoret to partner in January 2023. At associate level, senior Bernardita Schmidt also maintains an active corporate practice.

Chile > Projects and infrastructure

The nine-strong team at Urenda, Rencoret, Orrego y Dörr is mandated at all stages of projects, its advice encompassing public and private bidding processes, corporate structures, and construction and financing contracts. It also assists with related tax, labour and environmental law issues, as well as obtaining permits and authorisations. In terms of sector expertise, the department covers power generation, NCRE, mining, infrastructure, and real estate. Sergio Orrego, whose track record incorporates industrial, infrastructure, mining and energy projects; and fellow projects partner Gonzalo Errázuriz, are the principal practitioners. Also key to the team: Ignacio Urrutia is an environmental law expert and Felipe Rencoret is also active in projects and infrastructure-related work.

Chile > Energy and natural resources > Electricity and hydrocarbons

Urenda, Rencoret, Orrego y Dörr‘s six-member practice covers all aspects of energy projects, including risk analysis, asset acquisition-related due diligence, strategic alliances, and projects’ environmental impact assessments. The team also advises on easements, permits, tax issues, project financing, and energy-related disputes and administrative procedures. Heading the firm’s energy and natural resources practice, ‘great negotiatorSergio Orrego has longstanding experience in energy project development, including power plants and transmission lines; and he is particularly focused on non-conventional renewable energies, such as wind farms and run-of-the-river power plants. Key support is provided by energy and environmental law expert Ignacio Urrutia, whose career includes several years at CONAMA (the predecessor agency to the Government’s Environmental Assessment Service); and associate Javiera Vicuña, who advises on energy, water, mining and corporate law.