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Sergio Orrego

Work (56 2) 24995507
Urenda, Rencoret, Orrego y Dörr

Work Department

M&A/Corporate, Banking & Finance, Energy & Natural Resources, Mining and Project Finance.


Significant practice areas include M&A/Corporate, Banking & Finance, Energy & Natural Resources, Mining and Project Finance.


With Urenda Rencoret (1986-current), partner since 1998. With Sullivan & Cromwell, New York (1991-1992). Recognized by Chambers & Partners, Legal 500, IFLR1000, Latin Lawyer 250, Best Lawyers and LACCA.


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).


Banking and finance

Within: Banking and finance

Providing high levels of service’, Urenda, Rencoret, Orrego y Dörr is well known for eqity and debt transactions, securities and derivatives, along with structured finance, securitisation, and regulatory support. The practice group is also active in project finance, particularly in the mining and energy sectors. Recent mandates include advising Minera Escondida, as borrower, on the drafting and negotiation of a $500m two-tranche syndicated loan with a group of four lender banks. It also assisted Nordic Trustee with the restructuring of guarantees, originally granted with a loan bond agreement; and advised Inmobiliaria Punta Piqueros on the restructuring of its current debt and the raising of new lines of credit with Bank ItaúCorpbanca, for the construction and operation of a five-star hotel. Managing partner Sergio Orrego and Nicholas Mocarquer are highly rated, as are Rodrigo de Alencar and recently promoted partner Felipe Rencoret. Raúl Gómez is a key senior associate.

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Competition and antitrust

Within: Competition and antitrust

Urenda, Rencoret, Orrego y Dörr’s practice group handles merger control assessments and notifications, and distribution policies and strategies. The team also regularly assists with international unfair competition matters, including anti-dumping and safeguard cases; and advises on the implementation of compliance programmes. Nicholas Mocarquer and Gonzalo Rencoret recently assisted The Dow Chemical Company with the FNE’s approval of the $130bn mega-merger with E.I. DuPont De Nemours and Company. The practice also acted for US-headquartered global pharmaceutical company, Eli Lilly, in an FNE investigation into alleged anti-competitive restrictions surrounding the bidding for the purchase of certain drugs. Also noted, Sergio Orrego and Rodrigo de Alencar are ‘both highly experienced’.

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Corporate and M&A (including compliance)

Within: Corporate and M&A (including compliance)

Urenda, Rencoret, Orrego y Dörr’s corporate and M&A team provides general corporate assistance to major domestic and international companies. Representative work includes M&A deals, shareholders agreements, joint ventures and corporate restructuring. Nicholas Mocarquer, Gonzalo Rencoret and recently promoted partner Felipe Rencoret assisted BHP with the internal restructuring of certain subsidiaries in Chile, including the incorporation of a new entity, a reinvestment of profits and a capital increase. Other key work included assisting The Dow Chemical Company with the implementation in Chile of its mega-merger with DuPont. Sergio Orrego and Rodrigo de Alencar are the principal contacts.

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Projects and infrastructure

Within: Projects and infrastructure

Urenda, Rencoret, Orrego y Dörr’s recent experience includes advising Desarrollos Inmobiliarios y Constructora Valle Grande on a large real estate development in Santiago – involving 20,000 houses, a lagoon and schools, among other features. Sergio Orrego is the main adviser; and Sebastián García, Javiera Vicuña and Peter Faille are the key associates in a strong second tier.

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Chile: Energy and natural resources

Electricity/oil and gas

Within: Electricity/oil and gas

Urenda, Rencoret, Orrego y Dörr advises on project finance, obtaining permits, administrative procedures, and power plant construction agreements. Other areas of note include water rights related to the development of projects and contentious energy matters. Recent mandates include advising Empresa Eléctrica Perquilauquén on the development of a hydroelectric project. Managing partner Sergio Orrego is highly regarded, and Sebastián García and Javiera Vicuña are notable associates.

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Within: Leading lawyers

Sergio Orrego - Urenda, Rencoret, Orrego y Dörr

Within: Mining

Urenda, Rencoret, Orrego y Dörr is noted for its assistance to significant mining companies with foreign investments, as well as financings and construction-related matters. The team acted for Next Minerals on several matters regarding its interest in a mining purchase option agreement; and advised BHP on the review of BHP Chile’s standard confidentiality agreement for exploration matters. Managing partner Sergio Orrego is highly regarded.

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