{"id":287594,"date":"2025-10-06T17:16:18","date_gmt":"2025-10-06T15:16:18","guid":{"rendered":"https:\/\/dailyjus.com\/?p=287594"},"modified":"2025-10-07T10:11:48","modified_gmt":"2025-10-07T08:11:48","slug":"trust-in-arbitration-and-the-duty-of-disclosure","status":"publish","type":"post","link":"https:\/\/dailyjus.com\/index.php\/2025\/10\/06\/trust-in-arbitration-and-the-duty-of-disclosure\/","title":{"rendered":"Trust in Arbitration and the Duty of Disclosure"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>THE AUTHORS<\/strong>:<br><strong><a href=\"https:\/\/jusconnect.com\/en\/p\/debora-visconte\" target=\"_blank\" rel=\"noopener\" title=\"\">Debora Visconte<\/a><\/strong>, President of the <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-cbar-comit-brasileiro-de-arbitragem\" target=\"_blank\" rel=\"noopener\" title=\"\">Brazilian Arbitration Committee<\/a><\/strong> &amp; Partner at <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/firm\/visconte-advogados\" target=\"_blank\" rel=\"noopener\" title=\"\">Visconte Advogados<\/a><\/strong><br><strong><a href=\"https:\/\/jusconnect.com\/en\/p\/eleonora-bagueira-leal-coelho\" target=\"_blank\" rel=\"noopener\" title=\"\">Eleonora Coelho<\/a><\/strong>, Vice-President of the <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-asociacin-latinoamericana-de-arbitraje\" target=\"_blank\" rel=\"noopener\" title=\"\">Latin American Arbitration Association<\/a><\/strong> &amp; Partner at <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/firm\/eleonora-coelho-advogados\" target=\"_blank\" rel=\"noopener\" title=\"\">Eleonora Coelho Advogados<\/a><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Arbitration is an extrajudicial method of dispute resolution, whereby the parties submit their disputes to the judgment of private arbitrators rather than the Judiciary. The arbitrators, chosen by the parties, exercise jurisdictional functions and issue decisions with the binding effect of a court judgment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 1996, Law No. 9.307\/1996 (\u201c<strong>Brazilian Arbitration Act<\/strong>\u201d) was enacted, inspired by the <a href=\"https:\/\/jusmundi.com\/en\/document\/rule\/en-uncitral-united-nations-commission-on-international-trade-law-model-law-on-international-commercial-arbitration-1985-uncitral-model-law-on-international-commercial-arbitration-1985-friday-21st-june-1985?contents%5B0%5D=en\" target=\"_blank\" rel=\"noopener\" title=\"\">1985 United Nations Commission on International Trade Law Model Law on International Commercial Arbitration<\/a> (\u201c<strong>UNCITRAL Model Law<\/strong>\u201d), which represents the best international arbitration practices consolidated over the past four decades. Despite its well-established reputation in <a href=\"https:\/\/jusmundi.com\/en\/d\/profile\/state\/br?__hstc=118210966.6cdcb464d1ebc92909de7c2263a7c25b.1752853927710.1758869662514.1759249929529.46&amp;__hssc=118210966.4.1759249929529&amp;__hsfp=3172555735\" target=\"_blank\" rel=\"noopener\" title=\"\">Brazil<\/a> and abroad, arbitration has been subject to public criticism regarding the alleged failure of arbitrators to comply with their duty of disclosure \u2014 that is, the obligation to inform the parties of any circumstances that may raise justifiable doubts as to their impartiality and independence in the arbitral process, especially in&nbsp;judicial decisions setting aside arbitral awards. But is there any real basis for this commotion?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recent data shows that this is not the case. The 2024 \u201cArbitration Observatory\u201d survey, conducted by Professor Selma Lemes for the <a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-cbar-comit-brasileiro-de-arbitragem\" target=\"_blank\" rel=\"noopener\" title=\"\">Brazilian Arbitration Committee <\/a>(\u201c<strong>CBAr\u201d<\/strong>) in partnership with the Brazilian Association of Jurimetrics (\u201c<strong>ABJ\u201d<\/strong>), revealed that, in the city of S\u00e3o Paulo alone, only 1.5% of arbitral awards are&nbsp;set aside by the courts. This data weakens the argument that there are systemic flaws or complicity with questionable conduct on the part of arbitrators.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The exemplary functioning of arbitration in Brazil is also internationally recognized. Surveys conducted by Queen Mary University of London, with specialists from around the globe, report that, since 2018, S\u00e3o Paulo has been one of the most recommended seats for international arbitration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Given the undeniable success of arbitration in Brazil, attention has been drawn to alleged difficulties concerning arbitrators\u2019 duty of disclosure, which are said to be leading to a high number of arbitral awards being set aside by the courts. Contrary to what some would have us believe, the duty of disclosure is adequately regulated by practices defined both nationally and internationally. Under the Brazilian Arbitration Act, arbitrators must disclose any information that has the potential to affect their impartiality and independence and that is not public.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Following the example of the UNCITRAL Model Law and the most modern arbitration statutes worldwide, the Brazilian Arbitration Act does not contain an exhaustive list of situations that must be disclosed \u2014 not least because it would be impossible to predict all scenarios \u2014 but there are widely accepted and internationally practiced parameters to guide the exercise of the duty of disclosure. Among these parameters, the following stand out: the International Bar Association\u2019s Guidelines on Conflicts of Interest in International Arbitration, the Guidelines of the Brazilian Arbitration Committee, and the codes of ethics and rules of the arbitral institution chosen by the parties. Moreover, the&nbsp;grounds for challenge and disqualification&nbsp;applicable to judges extend to arbitrators insofar as they are compatible with arbitration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thus, there are tested, reliable mechanisms that have been used for decades to determine what information should be disclosed by arbitrators to the parties. And the data shows that arbitrators do comply with their duty of disclosure to the satisfaction of the parties. Within the arbitral process, the number of challenges presented against arbitrators is minimal. According to the aforementioned survey \u201cArbitration in Numbers,\u201d conducted by the Arbitration Observatory, in 2021, challenges were presented in only 3.34% of the total number of arbitrations in progress in the country\u2019s main arbitral institutions, and successful challenges represented only 0.6% of the total.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nevertheless, even if an arbitrator fails to comply with the duty of disclosure, the arbitral award rendered by them shall not necessarily be annulled. The only circumstances that may justify the setting aside of an arbitral award by the Judiciary are those expressly provided for in Article 32 of the Arbitration Law, which does not include failure to comply with the duty of disclosure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At most, failure to disclose may constitute an element evidencing one of the statutory grounds for annulment of an arbitral award: the&nbsp;partiality or lack of independence&nbsp;of the arbitrator. However, to reach this conclusion, an in-depth, fact-based analysis is necessary, demonstrating that the undisclosed circumstance was relevant, that it compromised the arbitrator\u2019s impartiality or independence, and that there was no justification for nondisclosure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In other words, despite the attention received by a few court decisions that have set aside arbitral awards, such cases are rare. The annulment of an arbitral award by the Judiciary, when duly justified and in accordance with the Arbitration Law, does not undermine or delegitimize&nbsp;the arbitral system. On the contrary: judicial review of arbitral awards is an exceptional but necessary mechanism expressly contemplated by the Brazilian Arbitration Act.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Public debate is important and should indeed take place, but it must be grounded in concrete technical data. The existing rules work well and are the result of decades of institutional maturity, accumulated experience, and consolidated practice in the legal field. The creation of new rules that are poorly defined, excessive, or disconnected from the reality of arbitration risks generating uncertainty and undermining what is most essential in arbitration: the trust of the parties involved and legal certainty.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ABOUT THE AUTHORS<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/jusconnect.com\/en\/p\/debora-visconte\" target=\"_blank\" rel=\"noopener\" title=\"\">Debora Visconte<\/a><\/strong> is a Partner at <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/firm\/visconte-advogados\" target=\"_blank\" rel=\"noopener\" title=\"\">Visconte Advogados<\/a> <\/strong>and currently serves as President of the <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-cbar-comit-brasileiro-de-arbitragem\" target=\"_blank\" rel=\"noopener\" title=\"\">Brazilian Arbitration Committee (CBAr)<\/a><\/strong>. She has over 20 years of experience in domestic and international arbitration and acts as counsel and arbitrator in complex disputes. D\u00e9bora holds a Ph.D. and a Master\u2019s degree in International Law from the University of S\u00e3o Paulo (<strong>USP<\/strong>), an LL.M. from the London School of Economics and Political Science (<strong>LSE<\/strong>), and an LL.B. from the Pontifical Catholic University of S\u00e3o Paulo (<strong>PUC-SP<\/strong>). She is also a Member of the <a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-icc-international-chamber-of-commerce\" target=\"_blank\" rel=\"noopener\" title=\"\">ICC International Court of Arbitration<\/a> and of the ICC Latin American Arbitration Group.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/jusconnect.com\/en\/p\/eleonora-bagueira-leal-coelho\" target=\"_blank\" rel=\"noopener\" title=\"\">Eleonora Coelho<\/a> <\/strong>is the Founding Partner of <strong><a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/firm\/eleonora-coelho-advogados\" target=\"_blank\" rel=\"noopener\" title=\"\">Eleonora Coelho Advogados<\/a><\/strong>, with over 20 years of experience in arbitration and dispute resolution. She acts as counsel and arbitrator in national and international proceedings and is recognized among Brazil\u2019s leading arbitration practitioners. Eleonora holds a Master\u2019s degree in Litigation, Arbitration and Alternative Methods of Dispute Resolution (<strong>ADR<\/strong>) from Paris-Panth\u00e9on-Assas University and an LL.B. from the University of S\u00e3o Paulo (<strong>USP<\/strong>). She currently serves as Vice-President of the <a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-asociacin-latinoamericana-de-arbitraje\" target=\"_blank\" rel=\"noopener\" title=\"\">Asociaci\u00f3n Latinoamericana de Arbitraje (<strong>ALARB<\/strong>)<\/a> and as a Permanent Member of the Advisory Council of <a href=\"https:\/\/jusconnect.com\/en\/d\/profile\/institution\/en-camccbc-center-for-arbitration-and-mediation-of-the-chamber-of-commerce-brazilcanada\" target=\"_blank\" rel=\"noopener\" title=\"\">CAM-CCBC (Center for Arbitration and Mediation of the Chamber of Commerce Brazil-Canada)<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"2250\" height=\"796\" src=\"https:\/\/dailyjus.com\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2.jpg\" alt=\"\" class=\"wp-image-287615\" srcset=\"https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2.jpg 2250w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-300x106.jpg 300w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-1024x362.jpg 1024w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-768x272.jpg 768w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-1536x543.jpg 1536w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-2048x725.jpg 2048w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-750x265.jpg 750w, https:\/\/daily.jusconnect.com\/~www\/wp-content\/uploads\/2025\/10\/2025-10-daniel-hemerly-ferreira-2-1140x403.jpg 1140w\" sizes=\"(max-width: 2250px) 100vw, 2250px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">*<em><em>The&nbsp;views&nbsp;and opinions expressed by authors are theirs and do not necessarily reflect those of their organizations, employers, or Daily Jus, Jus Mundi, or Jus Connect.<\/em><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>* This article was published by the authors in <\/em><a href=\"https:\/\/valor.globo.com\/legislacao\/coluna\/a-confianca-na-arbitragem-e-o-dever-de-revelacao.ghtml\" target=\"_blank\" rel=\"noopener\" title=\"\"><em>Valor Econ\u00f4mico<\/em><\/a><em>, and translated to English and adapted for publication on DailyJus.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Brazilian arbitration thrives on trust and transparency\u2014CBAr data shows minimal annulments, reaffirming arbitrators\u2019 duty of disclosure and confidence in the system.<\/p>\n","protected":false},"author":4,"featured_media":287622,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"subtitle":"","format":"standard","video":"","gallery":"","source_name":"","source_url":"","via_name":"","via_url":"","override_template":"0","override":[{"template":"custom","single_blog_custom":"274736","parallax":"1","fullscreen":"1","layout":"right-sidebar","sidebar":"author","second_sidebar":"default-sidebar","sticky_sidebar":"1","share_position":"hide","share_float_style":"share-monocrhome","show_share_counter":"0","show_view_counter":"0","show_featured":"1","show_post_meta":"1","show_post_author":"0","show_post_author_image":"0","show_post_date":"1","post_date_format":"default","post_date_format_custom":"Y\/m\/d","show_post_category":"0","show_post_reading_time":"0","post_reading_time_wpm":"300","show_zoom_button":"0","zoom_button_out_step":"2","zoom_button_in_step":"3","show_post_tag":"0","show_prev_next_post":"0","show_popup_post":"0","number_popup_post":"1","show_author_box":"0","show_post_related":"0","show_inline_post_related":"0"}],"override_image_size":"0","image_override":[{"single_post_thumbnail_size":"crop-500","single_post_gallery_size":"crop-500"}],"trending_post":"0","trending_post_position":"meta","trending_post_label":"Trending","sponsored_post":"0","sponsored_post_label":"Sponsored 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