Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados
Latin America Guide 2025
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados
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+511 611 7000Share profile
About
Firm Overview:
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera, founded in 1981, has considerable professional experience and is the largest law office in Peru. Our lawyers have graduated from the most prestigious Peruvian universities and many of them hold a master's degree from leading US and European universities. Our lawyers have worked on training programmes for leading foreign law offices such as Chadbourne & Parke; Proskauer; Shearman & Sterling; Jones Day, Holland & Knight; and Dechert.
Our firm tries to develop a solid commitment and a long-term relationship with its clients in order to become identified with their business objectives and offer the necessary professional support, coupled with experience, creativity and common sense. The firm assigns a lawyer, known as an ‘attaché’, to each client. The attaché is responsible for direct contact with the client and for seeking the most efficient and cost-effective strategy to be applied in each specific case entrusted to our firm.
Muñiz is a member of the Pacific Rim Advisory Council (PRAC), an organisation that groups together over 32 of the most important Pacific Rim law offices. The firm is also a member of Interact Law, a network, founded in 1990, of independent firms in 47 countries. In Peru, it has been the first law firm to decentralise its operations, opening branches in the cities of Trujillo, Arequipa, Ica, Chincha, Piura, Cusco, Chiclayo, Tacna, Ilo, Puno and Juliaca.
Furthermore, Muñiz was the first law firm in Peru to open a dedicated accounting service to meet the needs of companies, which now require coordinated legal and accounting advice. In view of the new criteria of the income tax law regarding the transfer-pricing regime, the firm also set up Muñiz Transfer Pricing. Furthermore, there is Semigra, a company that provides migration consultancy and handles administrative procedures for expatriated workers. The firm also set up an alliance with Intedya, a well-known Spanish company with presence in 16 countries that focuses on implementing compliance programmes at several companies.
Our quality control and customer services department was the first, and probably still the only one, at the legal market. This department is in charge of staying in contact with clients to know how satisfied they were with the service they received. The pandemic showed how well-prepared was the firm to face tough circumstances. Many of our lawyers are already in permanent remot work.
We adhered to the United Nations Global Compact, the world’s largest corporate sustainability initiative that supports companies to do business responsibly by aligning their strategies and operations with 10 principles on human rights, labour, environment and anti-corruption.We are strongly involved in several initiatives linked to Pro Bono work and social responsibility. For instance, Muñiz helps Operación Sonrisa, a non-profit medical service organisation that provides cleft lip and palate repair surgeries to children.
The firm has also set up a Diversity Committee which is in charge of receiving complaints of discrimination because of race, religion, gender, age, sexual orientation, etc. Since 2019, Estudio Muñiz is a member of the Aequales Community, Latin America’s largest network of private and public entities, which aims to achieve gender equality supporting companies in their path to equality, sharing practices, and generating a social impact.
Ranked Offices
Provided by Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados
- LimaLas Begonias No.475, 6th floor, San Isidro, , Lima, Lima, Peru, 27
- Web: www.munizlaw.com
- Tel: +511 611 7000
- Fax: +511 611 7010
- View ranked office
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Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados rankings
Articles, highlights and press releases
65 items provided by Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados
China Yangtze Power completes acquisition of Peru's Luz del Sur
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera (“Estudio Muñiz”) acted as Peruvian counsel to China Yangtze Power Co. (“CYPC”), China’s largest publicly listed power company, in the US$ 3.59 billion closing of the acquisition of Luz del Sur
The Peruvian authority of the free competition approved the acquisition of Luz del Sur by Yangtze Po
CYPI, advised by Estudio Muñiz, requested the authorization of Indecopi on October 0219 because the transacction exceed the thereshold set by the Peruvian law for the acquisitions carried out at the power industry. This is the largest deal closed in this industry in Peru in all history.
Sergio Oquendo Heraud joins Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados as a senior partner and director of the Finance, Capital Markets and Banking Practice Group.
Indecopi files investigation on possible corn subsidies
Estudio Muñiz represented the U.S. Grains Council, the most important yellow corn association in the United States, in the investigation carried out by Indecopi to impose countervailing duties on imports of hard yellow corn from the United States.
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera promotes three new principal partners
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados recently promoted three partners, Marta Fernández Pepper, Eduardo González Espinoza and Andrés Kuan-Veng Cabrejo, to principal partners, so there are now nine name partners in the firm.
Chilean steel producer Cintac buys into Peruvian group
Estudio Muñiz helped Calaminon, a well known provider of construction materials, in the sale of a stake (70%) to Steel Building S.A.C. , a subsidiary of Cintac, a Chilean company leader in the construction sector
Muñiz helps Compartamos Financiera issue inaugural bonds
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera has advised microfinance provider Compartamos Financiera and its arranger BBVA Banco Continental on the bank’s first-ever corporate bond issuance.
Pre-existing conditions in health insurance
The right to continuity of care when pre-existing conditions exist does not contemplate the possibility of shifting from the insurance system to a health care provider (EPS) or vice versa
E-health: the use of information and communication technology (ICT) in the health field
This article contains a general overview of the possibilities afforded by technology available on the Internet as far as health is concerned. The combination of these three elements, technology-Internet-Health, has resulted in a number of e-terms being coined, like e-health or cybermedicine.
Ashmore and Steve Dixon buy participating interest held by Graña y Montero in Stracon GyM
Stracon S.A.C., a Special Purpose Vehicle (SPV), composed of Ashmore Group and Steve Dixon, bought the 87,59 % participating interest held by the Graña y Montero group (GyM S.A.) in Stracon GyM S.A., a Peruvian mining contractor, for USD 76,82 million
Silvestre Perú and Neoagrum secured a USD 30 million loan facility
Agrochemical manufacturers Silvestre Perú S.A.C. and Neoagrum S.A.C. secured a USD 30 million loan facility
Grupo Familia strengthens its presence in Peru and Bolivia following the purchase of Sancela
Colombian consumer good company Grupo Familia -engaged in the manufacture of cleaning and personal care and hygiene products – bought 50 % of the shares of Productos Sancela in Peru and Bolivia for USD 37,8 million in order to take full control of the South American corporation.
CIFI grants loan for the construction of the Santa Lorenza hydropower plant
Corporación Interamericana para el Financiamiento de Infraestructura (CIFI) granted a 2-year USD 10 million loan to Empresa de Generación Eléctrica Santa Lorenza S.A.C., owner of the concession for the development of the 18.7 MW Santa Lorenza hydropower plant located in the region of Huanuco
Mosaic completed acquisition of Vale Fertilizantes
The Mosaic Company closed the purchase of Vale Fertilizantes from the Brazilian mining company Vale S.A. The negotiation, which began in 2016, involved a USD 2.5 billion deal which additionally included the indirect purchase of 40% of the capital stock of Compañía Minera Miski Mayo S.R.L. in Peru.
Pesquera Centinela buys Inversiones Scherma in Peru
Pesquera Centinela S.A.C. -an affiliate of the Romero Group in Peru- bought Inversiones Scherma S.A.C., owner of the Ernestina fishing vessel and its fishing quota
Muñiz, Ramírez, Pérez-Taiman & Olaya wins ProInversión tender on mine project
ProInversión is Peru's Private Investment Promotion Agency and it ran a tender where the successful bidder will provide legal advice in relation to the award of the Michiquillay copper mine
Muñiz, Ramírez, Pérez-Taiman & Olaya advises Peruana de Inversiones en Energías Renovables
Muñiz, Ramírez, Pérez-Taiman & Olaya helped recently to Peruana de Inversiones en Energías Renovables (PIER) in the sale of the 20 megawatt Manta hydroelectric plant to the Spanish investment companies Bow Power and Stowe Invest
China Three Gorges buys hydro plant from Odebrecht in Peru in a US$ 1.39 billion deal
Muñiz Ramírez Pérez Taiman & Olaya helped a consortium led by state-owned China Three Gorges (CTG) acquire Peru's third-largest hydroelectric plant from Brazilian group Odebrecht in a US$1.39 billion deal.
Muñiz, Ramírez, Pérez-Taiman & Olaya guides fruit purchase
Muñiz, Ramírez, Pérez-Taiman & Olaya helped San Miguel to buy Agrícola Hoja Redonda
Graña y Montero cells its stake in GMD to private equity firm Advent International
Graña y Montero, a leading engineering and construction company, announced that it has closed the sale of its stake in GMD, a subsidiary of the Group specialized in information technology and telecommunications
Muñiz, Ramírez, Pérez-Taiman & Olaya advised Engie
Muñiz, Ramírez, Pérez-Taiman & Olaya advised Engie for two corporate bond offerings on the Peruvian stock market
Muñiz, Ramírez, Pérez-Taiman & Olaya steer property sale
Muñiz, Ramírez, Pérez-Taiman & Olaya helped Compass Group to sell Centro Corporativo Miracorp
Muñiz, Ramírez, Pérez-Taiman & Olaya en multijurisdictional water company loan
Muñiz, Ramírez, Pérez-Taiman & Olaya helped AquaVenture obtain US$150 million in credit
Muñiz, Ramírez, Pérez-Taiman & Olaya steer mall expansion
Muñiz, Ramírez, Pérez-Taiman & Olaya helped realtor Andina to lease one of its properties
Reflections on the formalization process for informal miners to comply with the D.L. Nº 1105
This article briefly describes the process and requirements for the formalization of smallscale and artisan miners.
Taxation and effective judicial protection
The Political Constitution of Peru provides that judicial protection is a fundamental right and that all individuals and legal entities are entitled to refer their conflicts to the Judiciary
Supreme Court supports outsourcing
A resolution issued by the Supreme Court overruled a people's action brought by a union against the Labor Ministry to challenge several articles of the Regulations under the Outsourcing Law
The need to make some changes to the legal rules on tax transparency
In order for a tax system to promote economic efficiency, it must be neutral in order not to impose conditions on the taxpayers’ investment decisions.
Project finance is a project-based financing mechanism
Crowdfunding as an alternative method of funding and existing crowdfunding regulations
Crowdfunding is the practice of having a business idea collectively funded by raising small monetary contributions from a large number of investors, securing the delivery of the final product once the innovative idea is put into practice. A
China Yangtze Power completes acquisition of Peru's Luz del Sur
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera (“Estudio Muñiz”) acted as Peruvian counsel to China Yangtze Power Co. (“CYPC”), China’s largest publicly listed power company, in the US$ 3.59 billion closing of the acquisition of Luz del Sur
The Peruvian authority of the free competition approved the acquisition of Luz del Sur by Yangtze Po
CYPI, advised by Estudio Muñiz, requested the authorization of Indecopi on October 0219 because the transacction exceed the thereshold set by the Peruvian law for the acquisitions carried out at the power industry. This is the largest deal closed in this industry in Peru in all history.
Sergio Oquendo Heraud joins Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados as a senior partner and director of the Finance, Capital Markets and Banking Practice Group.
Indecopi files investigation on possible corn subsidies
Estudio Muñiz represented the U.S. Grains Council, the most important yellow corn association in the United States, in the investigation carried out by Indecopi to impose countervailing duties on imports of hard yellow corn from the United States.
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera promotes three new principal partners
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera Abogados recently promoted three partners, Marta Fernández Pepper, Eduardo González Espinoza and Andrés Kuan-Veng Cabrejo, to principal partners, so there are now nine name partners in the firm.
Chilean steel producer Cintac buys into Peruvian group
Estudio Muñiz helped Calaminon, a well known provider of construction materials, in the sale of a stake (70%) to Steel Building S.A.C. , a subsidiary of Cintac, a Chilean company leader in the construction sector
Muñiz helps Compartamos Financiera issue inaugural bonds
Muñiz, Olaya, Meléndez, Castro, Ono & Herrera has advised microfinance provider Compartamos Financiera and its arranger BBVA Banco Continental on the bank’s first-ever corporate bond issuance.
Pre-existing conditions in health insurance
The right to continuity of care when pre-existing conditions exist does not contemplate the possibility of shifting from the insurance system to a health care provider (EPS) or vice versa
E-health: the use of information and communication technology (ICT) in the health field
This article contains a general overview of the possibilities afforded by technology available on the Internet as far as health is concerned. The combination of these three elements, technology-Internet-Health, has resulted in a number of e-terms being coined, like e-health or cybermedicine.
Ashmore and Steve Dixon buy participating interest held by Graña y Montero in Stracon GyM
Stracon S.A.C., a Special Purpose Vehicle (SPV), composed of Ashmore Group and Steve Dixon, bought the 87,59 % participating interest held by the Graña y Montero group (GyM S.A.) in Stracon GyM S.A., a Peruvian mining contractor, for USD 76,82 million
Silvestre Perú and Neoagrum secured a USD 30 million loan facility
Agrochemical manufacturers Silvestre Perú S.A.C. and Neoagrum S.A.C. secured a USD 30 million loan facility
Grupo Familia strengthens its presence in Peru and Bolivia following the purchase of Sancela
Colombian consumer good company Grupo Familia -engaged in the manufacture of cleaning and personal care and hygiene products – bought 50 % of the shares of Productos Sancela in Peru and Bolivia for USD 37,8 million in order to take full control of the South American corporation.
CIFI grants loan for the construction of the Santa Lorenza hydropower plant
Corporación Interamericana para el Financiamiento de Infraestructura (CIFI) granted a 2-year USD 10 million loan to Empresa de Generación Eléctrica Santa Lorenza S.A.C., owner of the concession for the development of the 18.7 MW Santa Lorenza hydropower plant located in the region of Huanuco
Mosaic completed acquisition of Vale Fertilizantes
The Mosaic Company closed the purchase of Vale Fertilizantes from the Brazilian mining company Vale S.A. The negotiation, which began in 2016, involved a USD 2.5 billion deal which additionally included the indirect purchase of 40% of the capital stock of Compañía Minera Miski Mayo S.R.L. in Peru.
Pesquera Centinela buys Inversiones Scherma in Peru
Pesquera Centinela S.A.C. -an affiliate of the Romero Group in Peru- bought Inversiones Scherma S.A.C., owner of the Ernestina fishing vessel and its fishing quota
Muñiz, Ramírez, Pérez-Taiman & Olaya wins ProInversión tender on mine project
ProInversión is Peru's Private Investment Promotion Agency and it ran a tender where the successful bidder will provide legal advice in relation to the award of the Michiquillay copper mine
Muñiz, Ramírez, Pérez-Taiman & Olaya advises Peruana de Inversiones en Energías Renovables
Muñiz, Ramírez, Pérez-Taiman & Olaya helped recently to Peruana de Inversiones en Energías Renovables (PIER) in the sale of the 20 megawatt Manta hydroelectric plant to the Spanish investment companies Bow Power and Stowe Invest
China Three Gorges buys hydro plant from Odebrecht in Peru in a US$ 1.39 billion deal
Muñiz Ramírez Pérez Taiman & Olaya helped a consortium led by state-owned China Three Gorges (CTG) acquire Peru's third-largest hydroelectric plant from Brazilian group Odebrecht in a US$1.39 billion deal.
Muñiz, Ramírez, Pérez-Taiman & Olaya guides fruit purchase
Muñiz, Ramírez, Pérez-Taiman & Olaya helped San Miguel to buy Agrícola Hoja Redonda
Graña y Montero cells its stake in GMD to private equity firm Advent International
Graña y Montero, a leading engineering and construction company, announced that it has closed the sale of its stake in GMD, a subsidiary of the Group specialized in information technology and telecommunications
Muñiz, Ramírez, Pérez-Taiman & Olaya advised Engie
Muñiz, Ramírez, Pérez-Taiman & Olaya advised Engie for two corporate bond offerings on the Peruvian stock market
Muñiz, Ramírez, Pérez-Taiman & Olaya steer property sale
Muñiz, Ramírez, Pérez-Taiman & Olaya helped Compass Group to sell Centro Corporativo Miracorp
Muñiz, Ramírez, Pérez-Taiman & Olaya en multijurisdictional water company loan
Muñiz, Ramírez, Pérez-Taiman & Olaya helped AquaVenture obtain US$150 million in credit
Muñiz, Ramírez, Pérez-Taiman & Olaya steer mall expansion
Muñiz, Ramírez, Pérez-Taiman & Olaya helped realtor Andina to lease one of its properties
Reflections on the formalization process for informal miners to comply with the D.L. Nº 1105
This article briefly describes the process and requirements for the formalization of smallscale and artisan miners.
Taxation and effective judicial protection
The Political Constitution of Peru provides that judicial protection is a fundamental right and that all individuals and legal entities are entitled to refer their conflicts to the Judiciary
Supreme Court supports outsourcing
A resolution issued by the Supreme Court overruled a people's action brought by a union against the Labor Ministry to challenge several articles of the Regulations under the Outsourcing Law
The need to make some changes to the legal rules on tax transparency
In order for a tax system to promote economic efficiency, it must be neutral in order not to impose conditions on the taxpayers’ investment decisions.
Project finance is a project-based financing mechanism
Crowdfunding as an alternative method of funding and existing crowdfunding regulations
Crowdfunding is the practice of having a business idea collectively funded by raising small monetary contributions from a large number of investors, securing the delivery of the final product once the innovative idea is put into practice. A