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Leks&Co in association with GRATA International

Leks&Co in association with GRATA International
Leading the way in CCRE® (Contract Construction Real estate and Environment) Since 2009

Leks&Co is a leading law firm in Indonesia, excelled in CCRE® (Contract Construction Real estate and Environment) since 2009, with a strong focus on dispute resolution. With over 15 years of experience, our team of experts has established a reputation for delivering exceptional results and providing trusted advice to clients. We are in the business of legal service because we love the science of law, find excitement in providing solution to our clients’ legal problems through research, analysis, and creative thinking, and strive to satisfy our clients’ needs – and our own - in achieving justice and truth in law.

21/10/2026

📢 The Role of an Individuals in Environmental Litigation: Legal Standing in State Administrative Court Jurisprudence

⚖️ Navigating environmental administrative litigation in Indonesia requires a comprehensive understanding of how courts evaluate legal standing (kedudukan hukum). Determining whether an individual can independently file a lawsuit—without necessarily representing a wider community—presents distinct legal nuances that significantly impact the outcome of environmental disputes.

‼️ To effectively enforce environmental rights, parties must grasp key judicial standards—from the interpretation of "interest" under State Administrative Court jurisprudence to the application of Supreme Court precedents such as Decision No. 277 K/TUN/LH/2024. Identifying these procedural threshold issues early is essential for safeguarding community interests and managing regulatory compliance.

Swipe through the slides for a clear, visual breakdown of "Individuals' Legal Standing in Environmental Litigation in Indonesia"! ➡️

📖 Read the full article "The Role of an Individuals in Environmental Litigation: Legal Standing in State Administrative Court Jurisprudence" by Dr. Eddy Marek Leks, FCIArb, FSIArb and Miskah Banafsaj on blog.lekslawyer.com or https://blog.lekslawyer.com/individuals-legal-standing-environmental-litigation-indonesia/

20/10/2026

⁉️ Apakah suatu putusan arbitrase dapat dibatalkan jika memutus suatu perkara yang secara faktual telah diselesaikan melalui kesepakatan perdamaian hasil mediasi?

Kasus ini bermula dari permohonan pembatalan putusan arbitrase BANI terkait sengketa Perubahan Lingkup Kerja.

Judex Facti (PN Jaksel No. 425 Pdt.B/Arb/2016/PN.Jkt.Sel): Mengabulkan pembatalan dengan alasan tipu muslihat (Pasal 70 UU Arbitrase). Termohon dianggap menyimpangi kesepakatan awal untuk menjadikan hasil mediasi BPKP sebagai penyelesaian akhir yang mengesampingkan upaya hukum lain.

Judex Juris (MA No. 344 B/Pdt.Sus-Arbt/2017): Mengoreksi dasar pertimbangan tersebut. MA menegaskan bahwa mengajukan sengketa ke BANI setelah adanya kesepakatan mediasi yang final and binding adalah bertentangan dengan hukum, sesuai esensi Pasal 6 ayat (7) UU No. 30/1999.

Catatan Utama: Kesepakatan mediasi tertulis bersifat final dan mengikat. Jalur arbitrase baru dapat ditempuh jika mediasi tidak mencapai kesepakatan dan terdapat klausul arbitrase tertulis.

19/10/2026

📢 𝗖𝗮𝘀𝗲 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝗼𝗻 𝗣𝗮𝗿𝘁𝗶𝗮𝗹 𝗝𝘂𝗿𝗶𝘀𝗱𝗶𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲, 𝗪𝗼𝘂𝗹𝗱 𝗜𝘁 𝗩𝗼𝗶𝗱 𝘁𝗵𝗲 𝗪𝗵𝗼𝗹𝗲 𝗝𝘂𝗿𝗶𝘀𝗱𝗶𝗰𝘁𝗶𝗼𝗻?

⚖️ Navigating dispute resolution in Indonesia requires a deep understanding of how courts evaluate arbitral jurisdiction and enforce arbitration agreements. Raising a jurisdictional challenge—whether partial or full—presents strategic legal complexities that can significantly impact case outcomes.

‼️ To effectively manage jurisdictional disputes, parties must understand key legal standards—from the boundaries of judicial intervention and court competence to the practical application of Supreme Court precedents. Identifying these jurisdictional threshold issues early is critical for safeguarding dispute strategies and commercial interests.

Swipe through the slides for a clear, visual breakdown of "Jurisdictional Challenge in Indonesia: Case Analysis"! ➡️

📖 Read the full article "Case Analysis on Partial Jurisdictional Challenge, Would It Void the Whole Jurisdiction?" by Dr. Eddy Marek Leks, FCIArb, FSIArb on blog.lekslawyer.com or https://blog.lekslawyer.com/jurisdictional-challenge-indonesia-case-analysis/

12/10/2026

Interpreting ‘International’: Reassessing the Definition of Arbitral Awards in Indonesia

Enforcing an international arbitral award in Indonesia requires strict adherence to mandatory procedural requirements. Even with a favorable award, improper document authentication, flawed legalisation, or minor administrative errors can stall ex*****on and lead to costly delays.

To ensure successful enforcement through the competent court, parties must navigate key operational steps—from distinguishing between award registration and the exequatur application to fulfilling strict authentication standards. Understanding these practical requirements in advance is crucial for securing smooth legal recognition and protecting your commercial interests.

Swipe through the slides for a clear, visual breakdown of "Enforcement of International Arbitral Award in Indonesia"! ➡️

📖 Read the full article "Enforcement of International Arbitral Award in Indonesia" by Dr. Eddy M. Leks on blog.lekslawyer.com or https://blog.lekslawyer.com/international-arbitral-award-in-indonesia/

07/10/2026

The Importance of Choice of Law in the Arbitration Agreement

In cross-border contracts and complex commercial transactions, establishing a clear choice of law in the arbitration agreement is essential to ensure enforceability and legal certainty. Often overlooked, specifying the law governing the arbitration agreement—distinct from the law governing the main contract—prevents jurisdictional disputes and guarantees predictable conflict resolution.

Under the principle of separability, an arbitration clause is treated as an independent agreement. Without an explicit choice of law governing the arbitration agreement itself, courts and tribunals must determine whether to apply the governing law of the underlying contract or the law of the seat of arbitration. Specifying this choice in advance minimizes procedural ambiguities, saves time and costs, and provides parties with certainty over arbitral validity and enforcement.

Swipe through the slides for a clear, visual breakdown of "The Importance of Choice of Law in the Arbitration Agreement"! ➡️

📖 Read the full article "The Importance of Choice of Law in the Arbitration Agreement" by Dr. Eddy M. Leks on blog.lekslawyer.com or https://blog.lekslawyer.com/the-importance-of-choice-of-law-in-the-arbitration-agreement/

02/10/2026

⁉️ Apakah salah catat atau tulisan yang menyimpang dari fakta, baik sengaja atau tidak sengaja, yang tercantum di dalam putusan arbitrase, dapat menjadi alasan untuk pembatalannya?

✅ Namun, bagaimana jika tipu muslihat atau manipulasi tersebut tidak sebagai akibat tindakan salah satu pihak dalam pemeriksaan sengketa, tetapi terdapat kekeliruan yang menyimpang dari fakta dan kekeliruan tersebut tercantum di dalam putusan arbitrase?

✅ Dalam kasus hukum ini, permohonan pembatalan terhadap putusan arbitrase diajukan karena ada perbedaan antara fakta yang terjadi dan apa yang tercantum di dalam putusan arbitrase.
🔸 Perbedaan fakta tersebut adalah, keberadaan affidavit yang disampaikan di dalam persidangan oleh seorang ahli, dan affidavit tersebut hanya dibacakan di dalam persidangan.
🔸 Ahli hukum tersebut secara faktual tidak hadir di dalam persidangan. Namun, putusan arbitrase mencantumkan bahwa ahli tersebut memberi keterangan di persidangan.
🔸 Fakta ini ditegaskan juga oleh ahli hukum tersebut saat hadir di dalam persidangan permohonan pembatalan di pengadilan negeri.

‼️ Dalam pertimbangan hukumnya, Judex Juris pada Putusan No. 62 B/Pdt.Sus-Arbt/2017, mengatakan:

"Bahwa terbukti Putusan Arbitrase ... didasarkan dari hasil manipulasi persidangan ketika pemeriksaan dilakukan oleh ... sebagai saksi ahli yang memberikan keterangan di persidangan padahal ahli tidak hadir di persidangan yang bersangkutan hanya memberikan affidavit yang dibacakan."

✅ Judex Juris kemudian menguatkan putusan pengadilan negeri yang telah membatalkan putusan arbitrase tersebut.

01/10/2026

Energizing Indonesia: A New Legal Framework for Renewable Power Purchase Agreement

In power purchase agreements (PPAs), regulatory frameworks and standard contractual terms are crucial to ensure project bankability and sustainable energy transition. In Indonesia, recent regulations on renewable energy PPAs introduce important changes to provide greater legal certainty and investment flexibility for Independent Power Producers (IPPs).

Under the new ESDM framework on renewable PPAs, long-term contracts for renewable energy power plants—including solar, hydro, geothermal, and biomass—now allow for extended contract duration and flexible schemes such as Build-Own-Operate (BOO). However, compliance with statutory requirements, clear risk allocation, and specific tariff staging remain mandatory to safeguard both project viability and national energy targets.

Swipe through the slides for a clear, visual breakdown of "Energizing Indonesia: A New Legal Framework for Renewable Power Purchase Agreement"! ➡️

💡 Stay ahead of legal and regulatory developments.

📖 Read the full article "Energizing Indonesia: A New Legal Framework for Renewable Power Purchase Agreement" by Ardelia Ignatius on blog.lekslawyer.com or https://blog.lekslawyer.com/power-purchase-agreement-renewable-energy-contracts-indonesia/

29/09/2026

🟡 Pembatalan Putusan Arbitrase: Kehadiran dalam Sidang Arbitrase tidak berarti Pengakuan Perjanjian Arbitrase 🟡

⁉️ Apakah putusan arbitrase dapat dibatalkan dengan alasan ketiadaan perjanjian arbitrase di antara pihak yang bersengketa, meski pihak tersebut hadir dalam persidangan arbitrase?

✅ Pasal 4 ayat (1) UU Arbitrase dan APS secara esensial mengatur bahwa jika para pihak telah menyetujui bahwa sengketa di antara mereka akan diselesaikan melalui arbitrase, maka arbiter berwenang menentukan dalam putusannya mengenai hak dan kewajiban para pihak jika hal ini tidak diatur dalam perjanjian mereka. Penyelesaian sengketa melalui arbitrase berarti mengandaikan keberadaan perjanjian arbitrase.

✅ Pasal 70 UU Arbitrase secara esensial membatasi unsur-unsur permohonan pembatalan suatu putusan arbitrase, yaitu surat yang diajukan dalam pemeriksaan dinyatakan palsu, ditemukan dokumen yang menentukan yang disembunyikan oleh pihak lawan, atau putusan diambil dari hasil tipu muslihat oleh salah satu pihak.

✅ Selanjutnya, Pasal 62 UU Arbitrase dan APS secara pokok mengatur bahwa Ketua Pengadilan Negeri sebelum memberi perintah pelaksanaan putusan arbitrase (exequatur) memastikan salah satunya, apakah ada suatu perjanjian arbitrase di antara para pihak.

‼️ Judex Juris dalam Putusan No. 367 K/Pdt.Sus-Arbt/2013 mempertimbangkan:

"Bahwa tidak ada Perjanjian atau Klausula Arbitrase secara tertulis yang mengikat Pembanding dan Terbanding II, padahal ketentuan Undang-Undang No. 30 Tahun 1999 tentang Arbitrase dan Alternatif Penyelesaian Sengketa dengan tegas menyatakan bahwa agar perselisihan dapat diajukan ke Arbitrase harus didasarkan pada adanya Klausula Arbitrase atau Perjanjian Arbitrase secara tertulis;

Bahwa kemudian Terbanding II menjadi salah satu pihak yang berperkara di hadapan Badan Arbitrase ... , hal tersebut tidak dapat ditafsirkan sebagai adanya penundukan diri, sebab Undang-Undang Arbitrase tegas menyatakan bahwa Perjanjian Arbitrase harus dalam bentuk tertulis."

✅ Akibat dari pertimbangan hukum tersebut, putusan arbitrase majelis arbitrase dinyatakan batal demi hukum.

28/09/2026

Non-Enforcement of Award Due to Violation of Public Policy: Indonesian Court’s View

In arbitration, courts are generally expected to respect the non-interference principle to ensure that arbitral awards remain final, binding, and independent. However, this principle is not absolute and comes with specific statutoryi exceptions.

Under Indonesian law, an arbitral award—whether domestic or international—may face non-enforcement if it is found to violate public policy (ketertiban umum) or fails to meet the legal requirements during the court’s examination process.

Swipe through the slides for a clear, visual breakdown of Non-Enforcement of Arbitral Award Due to Violation of Public Policy: Indonesian Court’s View! ➡️

💡 Stay ahead of legal and regulatory developments.

📖 Read the full article "Non-Enforcement of Award Due to Violation of Public Policy: Indonesian Court’s View" by Eddy M. Leks on blog.lekslawyer.com or https://blog.lekslawyer.com/non-enforcement-arbitral-award-indonesia/

23/09/2026

Leks&Co Provides Expert Assistance in the Study Conducted by the Department of Public Housing and Residential Areas

Jakarta, September 2026—Leks&Co, a leading law firm in Indonesia renowned for its expertise in CCRE (Contract, Construction, Real Estate, and Environment) since 2009, is pleased to announce that its Managing Partner, Dr. Eddy M. Leks Eddy M. Leks , assisted by Miskah Banasfaj and Irwansyah Dhiaulhaq Mahendra has successfully assisted the Department of Public Housing and Residential Areas (Dinas Perumahan Rakyat dan Kawasan Permukiman - DPRKP) of DKI Jakarta as a Legal Expert (Tenaga Ahli Bidang Ilmu Hukum) in a comprehensive study on the Rent-to-Own (RTO) scheme.

The collaboration with the Department of Public Housing and Residential Areas also demonstrates the importance of professional expertise in supporting public-sector studies and policy development, particularly in areas involving housing, real estate, condominium, and contractual arrangements. This engagement further strengthens Leks&Co’s track record in advising on matters related to real estate and housing development in Indonesia. Since its establishment in 2009, the Firm has continued to develop its CCRE practice and provide legal and professional assistance to clients and stakeholders across a broad range of real estate and infrastructure-related matters.

Leks&Co in association with GRATA International is a leading law firm specializing in contract, construction, real estate, environment, and commercial dispute resolution, regularly acclaimed by leading international rankings such as Chambers, Legal500, IFLR1000, WWL, and asialaw.

If you have any queries, you may contact us by email at [email protected], visit our website www.lekslawyer.com and www.gratanet.com, our blog at blog.lekslawyer.com, and our real estate law blogs, i.e., www.hukumproperti.com and www.indonesiarealestatelaw.com.

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