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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

Industries

Consumer Products

Life Sciences

Practices

Intellectual Property

Regulatory Affairs

Location

Languages

    Thai

    English

Education

    Pharm.D., Silpakorn University

    LLB, Chulalongkorn University

Insights

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.
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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.
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August 21, 2025
Tilleke & Gibbins is pleased to announce that the firm has adopted Harvey, a leading enterprise-grade AI platform for the global legal industry. The firm is proceeding with a rollout of Harvey’s legal AI solutions, which are supported by robust security and confidentiality protections, across the firm’s full-service regional practice in Southeast Asia. This initiative builds on the firm’s recent deployment of Microsoft Copilot and represents another advancement in Tilleke & Gibbins’ commitment to leveraging technology for enhanced legal service delivery. Under the program, legal professionals across the firm’s offices in Cambodia, Indonesia, Laos, Myanmar, Thailand, and Vietnam will have access to the full Harvey platform, equipping them to deliver practical, impactful, and results-driven legal services for clients throughout the region. The firm will also develop bespoke agentic workflows within Harvey tailored to the firm’s core practices and the unique requirements of Southeast Asian legal markets. Commenting on the initiative, Managing Partner Tiziana Sucharitkul stated, “At Tilleke & Gibbins, we have consistently invested in developing and adopting technology to improve the speed, precision, and overall excellence of our legal services. The firm’s decision to invest in Harvey exemplifies our commitment to innovation, further differentiating Tilleke & Gibbins within Southeast Asia’s legal landscape.” Managing Partner Darani Vachanavuttivong remarked, “By combining the deep regional expertise of our lawyers with Harvey’s market-leading domain-specific AI, we are empowering our regional team to streamline drafting, research, and review processes for complex legal matters, all while maintaining the high standards of quality and security our clients expect from us.” Harvey’s Chief Business Officer John Haddock added, “It’s clear Tilleke & Gibbins is investing heavily in innovation, and it’s clear their global clients will benefit significantly from their focus and investment. The Harvey team is thrilled to support the firm’s journey with our platform.”
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Awards & Rankings

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.
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April 3, 2026
Tilleke & Gibbins is pleased to announce that the firm has been shortlisted in two categories at the Financial Times (FT) Innovative Lawyers APAC 2026 awards: Innovative Lawyers in Cyber and Data Privacy – “Digital Identity & Cryptocurrency Compliance” Innovative Practitioner – Athistha (Nop) Chitranukroh The FT Innovative Lawyers APAC Awards recognize law firms and practitioners who are driving innovation in legal services and delivering innovative client solutions across the Asia-Pacific region. This recognition marks our third acknowledgment in the Innovative Lawyers category and, notably, our first-ever nomination in the Innovative Practitioner category at the FT Innovative Lawyers APAC awards. It reflects our team’s continued ability to support clients on groundbreaking, forward-looking projects across the region. The awards ceremony will take place on May 14, 2026, in Hong Kong. To learn more about the FT Innovative Lawyers APAC 2026 awards and to view the full list of shortlisted organizations, please visit the FT website.
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March 19, 2026
Tilleke & Gibbins has been recognized in 17 categories at the 2026 Thailand Law Firm Awards from Asia Business Law Journal (ABLJ), up from 10 categories in 2025. The awards highlight leading law firms in Thailand across a broad range of practice areas, as well as overall firm performance. This year, Tilleke & Gibbins was named a co-winner in the Best Overall Law Firm category as well as in the following practice-specific categories: Artificial Intelligence Aviation Blockchain & Digital Assets Competition & Antitrust Data Compliance & Cyber Security E-Commerce, Digital Trade & Platform Regulation ESG (Environmental, Social, and Governance) Fintech Healthcare & Life Sciences Insurance & Reinsurance IP Litigation IP Prosecution Labour & Employment Private Equity & Venture Capital Shipping & Maritime Technology, Media & Telecommunications The awards are determined through ABLJ’s independent research, which considers recent work, client feedback, and market standing. The annual Thailand Law Firm Awards recognize firms demonstrating strong performance and breadth of expertise across key practice areas. For more details and the full list of winners, please visit the ABLJ website.
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