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

The six-member team at Urenda, Rencoret, Orrego y Dörr‘s mining department advises local and overseas clients on major projects from their early stages, including obtaining permits, mining title reviews, purchase options, financing, joint ventures, exploration matters, and royalty, streaming and easement agreements. The group can also draw upon the expertise of the firms specialists in environmental, labour and tax matters, as well as litigation, for its mining projects. A former foreign lawyer at Sullivan & Cromwell LLP‘s New York office, practice head Sergio Orrego has longstanding experience in mining, projects, corporate, M&A and energy and natural resources work; and fellow name partner Gonzalo Rencoret‘s track record includes advising on significant mining projects. At associate level, Verónica Roa regularly advises on exploration, option and joint venture agreements, while Javiera Vicuña assists with water, energy, mining and corporate matters.

Chile > Energy and natural resources > Electricity and hydrocarbon

The six-strong energy team at Urenda, Rencoret, Orrego y Dörr handles the full range of projects work, including due diligence during asset acquisitions, joint ventures, and assessing the environmental impact of projects on indigenous people and protected areas. It also assists with obtaining permits, project financing, and dispute resolution and administrative procedures. The energy and natural resources practice is led by energy projects specialist Sergio Orrego, while Ignacio Urrutia‘s career includes eight years at CONAMA, predecessor agency to the current Environmental Assessment Service. Associate Javiera Vicuña routinely acts on water, energy, mining and corporate matters.

Chile > Corporate and M&A

Helping companies to achieve their goals‘, Urenda, Rencoret, Orrego y Dörr‘s sizeable 21-strong corporate and M&A group is highly experienced in M&A transactions, shareholder agreements, joint ventures and corporate restructurings. The practice also provides general corporate assistance to major local and international companies on a day-to-day basis. Additionally, the firm is the Chilean member firm of the Multilaw and World Law Group international networks. The core group of established and experienced partners, all of whom advise on M&A deals, shareholder agreements and joint ventures, is comprised of Gonzalo Rencoret, Nicholas MocarquerSergio Orrego and Felipe Rencoret. Within the firm’s senior associate pool, Bernardita Schmidt is routinely active in corporate and M&A work, while Rafael Rencoret has significant experience in major transactions. Former partner Rodrigo de Alencar left the firm in January 2022.

Chile > Capital markets

Urenda, Rencoret, Orrego y Dörr‘s seven-member practice routinely acts on bonds and other debt-certificate issuances, along with public tender offers. The team also assists publicly-held corporations and brokers with issues involving the Securities Agency and the stock market. The practice is co-led by Felipe Rencoret, who advises on securities and associated compliance matters, and Sergio Orrego, whose practice includes IPOs and tender offers. Further partner-level, capital markets support is provided by Gonzalo Rencoret and Nicholas Mocarquer, while associate Isidora Zañartu possesses securities and regulatory expertise. Former partner Rodrigo de Alencar   joined Barros Silva Varela & Vigil in January 2022.

Chile > Projects and infrastructure

Urenda, Rencoret, Orrego y Dörr‘s projects group advises both foreign and domestic clients on developing and financing projects involving power generation (particularly NCRE), mining, infrastructure and real estate. Its advice extends to bidding processes, corporate structures, tax regimes and labour issues, along with environmental impact matters, financing, disputes and obtaining permits. The practice is co-led by industrial, infrastructure, mining and energy project specialist Sergio Orrego; and Gonzalo Errázuriz, who is also an experienced projects partner. Also key to the team are environmental law expert Ignacio Urrutia, and Felipe Rencoret, who acts on both infrastructure and projects matters.