You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

Areeya Yongnusornvanich

Consultant, Regulatory Affairs

Biography

Areeya Yongnusornvanich is a consultant on Tilleke & Gibbins’ regulatory affairs team in Bangkok. She assists clients across a range of life sciences industries, such as pharmaceuticals, medical devices, and herbal products. Areeya also advises on patent and trademark issues related to life sciences and engineering.

Prior to joining Tilleke & Gibbins, Areeya served as a regulatory affairs coordinator at a pharmaceutical company in Bangkok, where she managed product dossiers from registration to the preparation of variations for submission to the Thai FDA. Additionally, she worked as a clinical research associate, overseeing various clinical trials for both local and global studies, including those related to vaccines, oncology, and medical devices. Areeya also possesses experience in research, development, and production for pharmaceutical manufacturing. She has also assisted research in Japan on transdermal cytokine reactions.

Areeya is a licensed pharmacist who holds two bachelor’s degrees—a Bachelor of Pharmacy from Silpakorn University and an LLB from Chulalongkorn University.

Experience

  • Advised on obtaining product licenses and manufacturing/import licenses for herbal products and medical devices, and assisted with preparing registration dossiers for Thai FDA and other related authorities’ approval.
  • Assisted companies in obtaining good manufacturing practice (GMP) certification and overseas GMP clearance for medicinal products in Thailand.
  • Conducted legal searches and provided legal analysis on consumer health issues related to the Consumer Protection Act and the Product Liability Act.
  • Provided guidance on advertising for drugs, medical devices, food supplements, and cosmetic products in accordance with Thai FDA regulations.
  • Monitored the implementation of regulations by the Thai Food and Drug Administration and the Ministry of Public Health concerning drugs and medical devices.
ABOUT Areeya

Location

Languages

    Thai

    English

Education

    Pharm.D., Silpakorn University

    LLB, Chulalongkorn University

Insights

August 20, 2026
As part of its membership in Lex Mundi, Tilleke & Gibbins has released the latest edition of its Guide to Doing Business in Thailand, providing an overview of the legal, regulatory, and commercial considerations for companies establishing or expanding operations in Thailand. The 2026 edition offers practical insight into the country’s business environment, investment framework, and operational requirements. The guide covers a wide range of topics relevant to foreign and domestic investors, including: Investment incentives and promotion schemes Financial facilities and banking regulations Exchange controls and money transfers Import and export regulations Business structures and incorporation options Requirements for establishing a business Operational and compliance considerations Business cessation and insolvency procedures Employment and labor laws Taxation Immigration and visa requirements Prepared by Tilleke & Gibbins lawyers across multiple practice areas, the publication outlines key aspects of doing business in Thailand, including foreign investment restrictions, regulatory compliance obligations, corporate structures, employment requirements, and recent legal and economic developments affecting investors. The publication forms part of Lex Mundi’s Country Guides series, a global collection of jurisdiction-specific reference materials prepared by member firms around the world. Together, these guides help companies evaluate opportunities, compare regulatory environments, and plan international business activities across multiple markets. The full Guide to Doing Business in Thailand 2026 is available through the button below.
July 1, 2026
Obtaining marketing authorization is a fundamental requirement for bringing pharmaceutical products to the Thai market. Companies must navigate the Thai Food and Drug Administration’s registration procedures while also complying with post-approval pharmacovigilance obligations, licensing requirements for manufacturing and importation, data protection rules, and other regulatory requirements. This guide provides an overview of Thailand’s regulatory framework for pharmaceutical marketing authorization, including available registration pathways, review timelines, application fees, postmarketing surveillance obligations, licensing requirements, exemptions, data exclusivity, freedom of information, and parallel import considerations. It is intended as a practical reference for pharmaceutical companies, regulatory affairs professionals, and others involved in bringing medicinal products to the Thai market. Download the guide below for a concise overview of the current requirements and procedures governing pharmaceutical marketing authorization in Thailand.
December 9, 2025
Tilleke & Gibbins is proud to announce that four litigation cases handled by the firm have been selected among the nine Distinguished Judgment Awards granted by Thailand’s Central Intellectual Property and International Trade Court (IP&IT Court) for the period from October 1, 2024, to August 31, 2025. This recognition highlights the complexity, novelty, and legal significance of these cases, which were chosen based on stringent criteria including new legal issues, high evidentiary volume, and intricate legal arguments. Among these four cases, one was singled out as the “Most Distinguished Judgment” – the landmark trademark squatting case involving the trademark rights of our client, Thailand’s largest state-owned energy conglomerate, and its subsidiary. In this case, the defendants had filed 52 trademark applications mimicking our client’s marks, making it the largest trademark squatting dispute in Thai history. On April 30, 2025, the IP&IT Court ordered the cancellation of multiple infringing trademarks, setting a benchmark for IP enforcement against trademark squatters in Thailand. The other three recognized cases demonstrate Tilleke & Gibbins’ breadth of expertise in IP litigation: Patent infringement and invalidation involving trade secrets misappropriation. Trade dress infringement of a unique packaging. Landmark Luckin Coffee case involving trademark infringement and invalidation. The IP&IT Court handles approximately 200 IP civil litigation cases each year, and our IP litigation team has typically been involved in 25–30% of them, reflecting our dominant role in shaping IP jurisprudence in Thailand.

Awards & Rankings

September 23, 2026
Tilleke & Gibbins has received eight nominations for the Managing IP Asia-Pacific Awards 2026, recognizing the strength of the firm’s intellectual property practice across Southeast Asia. The firm has been shortlisted in the following categories: Asia-Pacific Firm of the Year (Domestic) Cambodia Firm of the Year Indonesia Firm of the Year Thailand Patent Firm of the Year Thailand Trademark Firm of the Year Vietnam Patent Firm of the Year Vietnam Trademark Firm of the Year In addition, Darani Vachanavuttivong, managing partner and managing director of the firm’s intellectual property practice, has been shortlisted for Asia-Pacific Practitioner of the Year (General Law Firms). The eight nominations reflect the continued recognition of Tilleke & Gibbins’ regional capabilities in intellectual property protection, commercialization, and enforcement. The winners will be announced at a ceremony in Kuala Lumpur on November 5, 2026. For more information, please see the full Managing IP Asia-Pacific Awards 2026 shortlist.
September 23, 2026
Tilleke & Gibbins has received 14 nominations for the Asialaw Awards 2026. The nominations span jurisdiction-level, practice-area, and individual categories across the region. At the jurisdiction level, Tilleke & Gibbins has been shortlisted in three categories: Cambodia Firm of the Year Laos Firm of the Year Thailand Firm of the Year The firm has also been shortlisted for four regional practice awards: Aviation and Shipping Firm of the Year Corporate and M&A Firm of the Year Dispute Resolution Firm of the Year Technology and Telecommunications Firm of the Year Seven individual nominations recognize lawyers from the firm’s offices in Laos, Thailand, and Vietnam: Prisna Sungwanna, Laos Female Lawyer of the Year Pimvimol Vipamaneerut, Thailand Female Lawyer of the Year Tram Ngoc Bich Nguyen, Vietnam Female Lawyer of the Year John Frangos, Aviation and Shipping Lawyer of the Year, Dispute Resolution Lawyer of the Year Pongpalin Chantrapirom, Dispute Resolution Rising Star of the Year Chusert Supasitthumrong, Labour and Employment Lawyer of the Year The winners will be announced at an awards ceremony in Kuala Lumpur on November 5, 2026. For more information on the Asialaw Awards 2025 and to browse a full list of the nominees, please visit the Asialaw website.
May 14, 2026
Asian Legal Business (ALB) has published the ALB Asia IP Rankings 2026, the latest edition of its annual guide recognizing leading intellectual property firms across the region. Continuing the approach introduced last year, the rankings present a unified table in each jurisdiction, combining patent and trademark/copyright work to provide a more holistic view of the IP market. Tilleke & Gibbins has retained strong rankings in all three jurisdictions covered by the survey: Thailand: Tier 1 Vietnam: Tier 1 Indonesia: Tier 2 The rankings are based on work conducted between February 2025 and February 2026, covering both ongoing and completed contentious and noncontentious matters. ALB’s research draws on firm submissions, client feedback, editorial resources, and market input to identify the region’s leading IP practices. Tilleke & Gibbins’ IP team has maintained a strong track record across all ranked jurisdictions since the inception of the ALB IP Rankings in 2018. To view the full rankings, please see the May 2026 issue of ALB.

Other Professionals