Your Trusted Partner for Intellectual Property Protection Across Asia
Where Deep Local Knowledge Meets Unwavering Global Commitment
Offices in Beijing, Shanghai, Guangzhou, Shenzhen, Hong Kong, Macau, Taiwan, and Singapore | Serving All 49 Asian Jurisdictions
Asia’s vast landscape — spanning 49 jurisdictions, diverse legal systems, and evolving infrastructures — demands more than generic IP solutions. At Chang Tsi & Partners, with over 70 Asia professionals, we combine more than two decades of specialized expertise, localized partnerships, and on-the-ground agility to safeguard your intellectual property and form your pan-Asian IP strategy as your Asia IP Hub across all 49 Asian jurisdictions.
We are able to assist with the filing, prosecution, maintenance and enforcement of Patents in all countries in Asia. We have a team of qualified Patent Attorneys across all technical fields and dedicated support teams who work closely with our Associate and IP offices across Asia. Our extensive experience coupled with an in-depth and first-hand knowledge of Asia’s IP systems ensures that we are best placed to assist our clients with their Patent matters in all countries in Asia.
We are able to assist you with IP matters across Asia, including filing, prosecution, maintenance, and enforcement of Registered Designs in all countries in Asia.
Our team of qualified IP attorneys and dedicated support teams work closely with our associate and IP offices across Asia. With extensive experience and in-depth, first-hand knowledge of Asia’s IP systems, we are ideally positioned to assist our clients with all aspects of their Registered Designs matters throughout Asia.
We are able to assist with filing strategies, availability searches and the filing, prosecution, maintenance and enforcement of your trademark, as well as recording any changes pertaining to your trademark, and providing related advice, in all countries in Asia. We have qualified trademark and IP practitioners and dedicated support teams who work closely with our associate and IP offices across Asia. Our extensive experience coupled with an in-depth and first-hand knowledge of Asia’s IP systems ensures that we are best placed to assist our clients with prosecution strategies and the protection of their trademark in all countries in Asia.
We are able to assist you with IP matters across the continent. We can advise on the registration and protection of copyright in all countries in Asia.We have a team of qualified IP professionals and dedicated support teams who are familiar with Asia’s legislative landscape and work closely with our associate offices across Africa in protecting our clients' Copyright and other Intellectual Property. Our extensive experience coupled with an in depth and first-hand knowledge of Asia’s IP laws and legal systems ensures that we are best placed to assist our clients with their Copyrights matters across Asia.
We specialize in the management of patent annuity payments across Asia - from fee calculation to multi-country payment processing. Our centralized service ensures compliance while minimizing administrative burdens.
We handle all aspects of IP renewals across Asia - from deadline monitoring to multi-jurisdictional portfolio management. Our systematic approach ensures seamless continuation of your intellectual property rights.
On April 23, 2025, to express gratitude and respect for secretaries and paralegals who support the firm’s daily work, Chang Tsi & Partners held the themed event "Faint Lights, Bright Future" to jointly celebrate 2025 Administrative Professional Day.
Chang Tsi & Partners has been recognized again as “Employer of Choice” by Asian Legal Business (ALB) in 2025, which marks the seventh time for the firm to receive this award.
Chang Tsi’s litigation and non-litigation practice and 2 partners have earned high rankings again from LEGALBAND in the 2025 edition of Top Ranked Law Firms and Top Ranked Lawyers in China. The firm received Band 1 in IP litigation and non-litigation in the Top Ranked Law Firms, with managing partner Simon Tsi received Band 1 in IP litigation and Spring Chang received Band 1 in IP non-litigation in the Top Ranked Lawyers in China.
From April 17 to 18, the 2025 Ching IP & Innovation Summit (CIPIS) was held in Shanghai. As the annual event in the field of intellectual property and technological innovation in the Asia-Pacific region, CIPIS adheres to the theme of "Global Vision · China Focus". It has become an important exchange platform that gathers global experts, business leaders and industry pioneers committed to promoting in-depth discussions and cooperative development among enterprises.
Recently, LEGALBAND released its 2025 edition of China Law Awards list, with significant expertise and contribution in the industry, Chang Tsi & Partners successfully awarded the “Intellectual Property: Non-Litigation Law Firm of the Year”. This achievement once again highlights the firm’s leading position in IP world.
