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  • About us
  • Da Silva Teixeira & Associados

    is widely recognized as the premier local law firm in Timor-Leste and is unrivalled in its ability to provide in-country context and a genuine understanding of the Timorese legal framework and regulatory dynamic to both local and international customers.

    Our firm primarily advises multinational corporations, multi-lateral agencies, aid/development partners, government entities and non-governmental organizations, by combining the top-tier legal excellence of our lawyers with their extensive knowledge of the unique economic, political, historical and cultural factors that shape Timor-Leste.

    As a whole, the lawyers who form part of the DTA team are multi-lingual and have obtained legal certification and experience both in Timor-Leste and internationally, in leading law firms operating throughout the Asia-Pacific Region, Australia and Europe, allowing our team to deliver high quality legal services to our clients.

    The ability of all our lawyers to communicate in English as well as the local official languages (Tetum and Portuguese) combined with our extensive experience working within Timorese society place us in a unique position to provide relevant and practical advice to companies and organisations doing business in Timor-Leste.

    We believe in setting a new standard for legal excellence with a Timor-Leste context.

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    • Your peace of mind is our priority.
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    DTA expertise includes the following areas

    • Corporate and Commercial Law
    • Banking and Finance
    • Oil & Gas
    • PPPs and Infrastructure
    • Administrative Law
    • Transportation
    • Climate Change and the Environment

    • Land Law and Property Development
    • Taxation

    • Labour and Social Security Law
    • Public Policy and Legislative Drafting
    • Litigation and Alternative Dispute Resolution

    • Registration and Licensing
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    Industries
    DTA is a comprehensive (full-service) legal practice handling a diverse array of matters, ranging from law drafting to litigation, and from international arbitration to carbon sequestration. Regardless of the nature of the legal challenge, DTA is committed to delivering sound legal counsel, drawing upon the extensive expertise that our seasoned attorneys bring to the firm.

    What others say about our firm

    Da Silva Teixeira & Associados’ premier position in the Timorese legal market has been repeatedly confirmed in the Chambers and Partners Asia Pacific and Global Guides for 2016-2025, which unvaryingly ranked the firm as a top tier "Band 1" law firm in Timor-Leste, with both of its partners, Sahe Da Silva and José Teixeira, also being ranked as top tier "Band 1" lawyers. Senior Associate Nuno Marrazes is also listed as “Associate to Watch”.


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    Client first

    Our commitment to a client-first approach is paramount. We prioritize personalized, clear, and strategic legal services to address each client's unique needs. Our experienced attorneys are dedicated to listening, communicating effectively, and achieving optimal outcomes.


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    Experience

    We pride ourselves on our depth of experience, which is the backbone of our practice. With years of legal expertise, our team is equipped to navigate the complexities of Timorese law with precision and skill. We leverage our collective knowledge to provide solutions that are not only effective but also innovative.


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    Prestige

    Our reputation in the legal field is built on a foundation of hard work and achievement. We strive to represent the pinnacle of legal expertise and professionalism in Timor-Leste. Our attorneys, recognized leaders in their respective areas, bring a legacy of success and a commitment to the highest standards of practice.


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    DTA Articles

    Oct 12, 2026

    East Timor: Entry into Force of the New Competition Act
    Law No. 1/2026, of 25 March (Competition Act), adopting East Timor first legal regime for competition, enters into force on 21 September 2026. The Act enters into force 180 days after its publication in the Official Gazette and aims to promote and protect free competition in national markets, reflecting the Timorese State’s commitment to building a competitive, fair and transparent market, fostering sustainable economic development and consumer welfare, in a context of Timor-Leste’s ongoing efforts to integrate into the Association of Southeast Asian Nations (ASEAN) and the World Trade Organization (WTO).
     
    The new Act applies to all economic activities carried out, on a permanent or occasional basis, in the private, public and cooperative sectors, including conduct carried out outside national territory where it generates, or is capable of generating, effects within Timor-Leste. The Government may, by decree-law, exclude certain activities from the scope of application of the Act. Although the preamble of the Act suggests that the petroleum, natural gas and minerals sectors may be excluded from its scope of application, the Act itself does not provide for any such limitations.

    Competition Authority

    Enforcement of the Competition Act will be entrusted to a new competent public authority, vested with broad supervisory, regulatory and sanctioning powers. For the financial sector, the competent public authority is the Central Bank of Timor-Leste. The law approving its statute must set the deadline for its installation and for the appointment of its governing body, which may not exceed 90 days after that law’s entry into force. Until the new authority is established, its powers will be exercised on a transitional basis by the governmental body responsible for trade and industry.
     

    Prohibited Restrictive Practices

    The Act prohibits agreements between undertakings, concerted practices and decisions by associations of undertakings that, whether by object or effect, prevent, distort or appreciably restrict competition, distinguishing between horizontal restrictive practices, such as price- fixing, output limitation, market sharing and bid-rigging, and vertical restrictive practices, such as imposing minimum resale prices or discriminatory conditions.
     
    Agreements and decisions caught by the horizontal prohibition are null and void and will produce no effects, unless justified (i.e., where efficiency gains exist).
     
    Three types of unilateral conduct are also prohibited: abuse of a dominant position (an undertaking is presumed dominant where it holds at least 45% of the relevant market; a dominant position is likewise presumed between 35% and 45%, with this presumption being rebuttable; below 35%, dominance may still be established where market power is demonstrated); abuse of the state of economic dependence; and abuse of purchasing power.
     

    Merger Control

    The new Act introduces a prior merger control regime. Mandatory prior notification applies to transactions carried out in the energy, transport, postal services, telecommunications and financial services sectors that result in the direct or indirect acquisition of control of one or more undertakings with a market share exceeding 25% or combined annual revenues exceeding USD 10 million.
     
    Transactions must be notified after the agreement is concluded and before its completion, and it is prohibited to implement a notifiable concentration without having obtained the corresponding non-opposition decision (prohibition of gun-jumping). In the regulated sectors referred to above, the competent authority’s decision is subject to a prior, mandatory and binding opinion from the relevant sectoral regulators.
     
    Concentrations that do not create significant obstacles to effective competition in the national market or a substantial part thereof are cleared. Where a transaction creates such obstacles, the competent authority may refuse clearance, approve the transaction subject to adequate commitments offered by the notifying undertaking, or approve it where it significantly strengthens the international competitiveness of the undertakings involved, among other justification grounds set out in the Act.
     

    Market Studies and Recommendations

    The competent public authority may carry out market studies and sector inquiries, by economic sector and by type of agreement, with a view to monitoring markets and verifying circumstances indicative of distortions or restrictions of competition, and may issue recommendations identifying behavioural or structural measures it considers appropriate to prevent, remove or compensate for such effects.
     

    Infringements and Penalties

    Breaches of competition law expose infringing parties to fines of up to 10% of the preceding financial year’s turnover. In turn, failure to provide information, the provision of false, inaccurate or incomplete information, as well as failure to cooperate with the competent authority and unjustified failure to appear in procedural steps, constitute infringements punishable by fines of up to 5% of the preceding year’s turnover.
     
    Negligence is punishable, and the competent authority may also impose other administrative measures, such as warnings or written orders. These infringements constitute administrative offences, without prejudice to any criminal liability, and the infringer is always guaranteed the right to be heard before any sanction is imposed.
     

    Appeals

    Decisions of the competent authority are subject to appeal before the administrative, tax and audit courts, pursuant to the Timorese Judicial Organisation Law.
     

    Next Steps

    Full enforcement of the Competition Act will depend largely on the setting-up of the new authority, whose statute is expected to be approved in the short term. Effective implementation will also require the development of adequate institutional infrastructure and skilled human resources, and the strengthening of international partnerships, including within the Lusophone Competition Network, of which Timor-Leste has been a member since its inception in 2004, as well as the International Competition Network and regional cooperation within ASEAN.
     
    Until the new authority is effective, enforcement will be secured on a transitional basis by the governmental body responsible for trade and industry (i.e. East Timor’s Ministry for Commerce and Industry). Given also the broad supervisory, investigative and sanctioning powers granted to the competent authority and the significant fines set out in the new Act, all undertakings with a current or prospective presence in Timor-Leste should carefully assess the impact of the new regime on their activities, commercial conduct and any planned concentrations, with a view to ensuring compliance with the new Act.
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    Aug 18, 2025

    Jorginha Martins joins our team

    We are pleased to announce that Jorginha Martins has joined our firm as a trainee lawyer. Jorginha is currently undertaking the 6th Course for Private Lawyers and will be completing her traineeship with DTA as part of this programme.

    In addition to her strong academic profile, Jorginha brings with her professional experience gained while working in Government, which will enrich her practical exposure during the traineeship.

    The traineeship is a fundamental requirement of the course, aimed at providing trainee lawyers with first-hand experience of legal practice, practical exposure to the judicial system and related services, and an opportunity to apply the theoretical knowledge acquired throughout their studies.

    We look forward to supporting Jorginha as she gains valuable insights into the profession and contributes to our ongoing work.

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    Aug 08, 2025

    TLAUCON25 boosts Timor-Leste and Australia trade links

    The 2nd Timor-Leste–Australia Business and Economic Conference (TLAUCON25) took place at the Dili Convention Centre (CCD), a joint initiative of the Governments of Timor-Leste and Australia, supported by TradeInvest Timor-Leste and the Timor-Leste Chamber of Commerce and Industry (CCI-TL).


    This annual conference brought together business leaders and government representatives to foster economic partnerships, promote sustainable development, and enhance bilateral cooperation in priority sectors.


    The event featured panel discussions, a trade fair, and the signing of an MoU between CCI-TL and the East Kimberley Chamber of Commerce and Industry to strengthen regional trade collaboration.


    Representing the board of the Timor-Leste–Australia Business Council (TLABC), José Teixeira addressed participants at the TLABC networking session, noting:

    • The Council’s role in advocating on issues impacting Timor-Leste–Australia business,
    • Serving as a conduit for companies seeking bilateral opportunities, and
    • Promoting private sector initiatives and sharing relevant information.


    José also encouraged Australian investors to join the TLABC and contribute to shaping its upcoming advocacy agenda, highlighting membership inclusivity for businesses of all sizes.


    He reflected on a personal connection to the venue: in 2002, as the coordinator of the transitional government restoration of independence celebrations responsible for the Restoration of Independence Trade Expo , working under the chief minister of the UN Transitional Government, José oversaw the AUSAID reconstruction of the old market (now the Dili Convention Centre) in preparation for the Expo. That historic occasion, inaugurated by Australian Prime Minister John Howard and Timor-Leste’s Chief Minister Mari Alkatiri, symbolized the enduring economic partnership between the two nations, a legacy proudly carried forward at TLAUCON25, 23 years later.


    Photo credit: TradeInvest Timor-Leste

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