
Chief Executive Officer | Co-Founder | Attorney at Law | Legal Intelligence Architect | Notarial Services Attorney
Mrs. Sumaree Thongbumrung is a distinguished legal professional with more than 20 years of experience in litigation, corporate advisory, commercial transactions, and strategic legal planning. Throughout her career, she has represented individuals, entrepreneurs, and corporations across a wide range of complex legal matters, earning recognition for her ability to combine legal precision with practical business judgment.
Her professional philosophy is founded on the belief that successful legal representation requires far more than legal knowledge alone. It demands strategic thinking, disciplined preparation, meticulous drafting, risk anticipation, and the ability to align legal solutions with broader commercial objectives. These principles form the foundation of both her legal practice and the development of Prime Juris.
With more than 20 years of experience in litigation, corporate advisory, business structuring, contract architecture, immigration matters, and risk management, Mrs. Sumaree has developed a distinctive approach that combines legal precision with practical business judgment. Her focus extends beyond resolving legal issues to creating structured, sustainable solutions that protect clients and support long-term success.
As Co-Founder and Chief Executive Officer of Prime Juris, she leads the firm's vision of integrating legal excellence, ethical responsibility, strategic intelligence, and innovation. She also actively contributes to the development of legal technology, legal intelligence systems, and AI-assisted legal solutions, while remaining firmly committed to the principles that justice delayed is justice denied, success is built upon structure, and integrity is the highest virtue of the legal profession.
Chief International Business Development Officer
Patrick Alexander Sackler is an experienced American business professional with more than 25 years of international business experience across diverse industries and commercial environments.
Throughout his career, he has developed a strong understanding of business operations, organizational challenges, strategic planning, and executive decision-making. His practical experience enables him to identify business risks, analyze operational issues, and support management teams in developing effective and sustainable solutions.
At Prime Juris, Patrick plays a key role in international business development, client relations, and strategic support. He works closely with clients and management teams to help address complex business challenges, improve organizational effectiveness, and facilitate communication between legal, commercial, and operational objectives.
His business-oriented perspective complements Prime Juris's legal expertise, contributing to the firm's commitment to delivering practical, structured, and commercially sound solutions for both domestic and international clients.

WATCHARAPORN NOPTHAMMATHORN
Watcharaporn Nopthammathorn is an experienced accounting and administrative professional with extensive experience in financial documentation, records management, and business administration. She possesses strong organizational skills and a meticulous approach to managing financial information, corporate records, and operational documentation.
Throughout her career, she has developed expertise in accounting support, document control, compliance administration, and information management. Her attention to detail, accuracy, and systematic work methods contribute significantly to maintaining efficient business operations and supporting professional decision-making.
As Accountant Director of Prime Juris, Watcharaporn plays an important role in overseeing accounting administration, financial documentation, organizational records, and operational support. Her commitment to accuracy, reliability, and professional responsibility helps ensure that clients and the organization receive efficient, structured, and dependable administrative support.

Co - Corporate Litigation Lawyer
Mr. Chokmai Chaikampa is an experienced litigation lawyer with extensive experience in both civil and criminal proceedings. Throughout his legal career, he has represented clients in a wide range of disputes, demonstrating strong advocacy skills, practical legal judgment, and a thorough understanding of litigation strategy.
He is recognized for his ability to adapt quickly to changing circumstances, analyze complex situations under pressure, and develop effective solutions to address unexpected legal challenges. His balanced approach combines firmness in protecting clients' interests with the flexibility required to navigate evolving legal and factual circumstances.
At Prime Juris, Mr. Chokmai focuses on litigation and dispute resolution, working closely with clients to develop practical legal strategies, manage risks, and pursue efficient and effective outcomes. His commitment to professional responsibility, preparation, and strategic execution contributes significantly to the firm's litigation practice.
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