Chang Tsi & Partners


6-8th Floor Tower A, Hundred Island Park
Bei Zhan Bei Jie Street, Xicheng District
Beijing 100044

+86 10 8836 9999

+86 10 8836 9996

Key contacts:

Marketing Manager: Louisa Cheng
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Quick facts:

Number of Partners: 13
Number of Lawyers: 350+
Languages: English, Chinese, Cantonese, Korean, Japanese, German, Greek
Network Memberships: INTA, AIPLA, AIPPI

Chang Tsi & Partners is a "National Outstanding Law Firm (nominated by Ministry of Justice of China)" with its strong reputation in intellectual property and litigation.

Since its establishment in 2002, Chang Tsi & Partners has been managing to become one of the leading law firms in China. The firm has been constantly referred as the “National Outstanding Law Firm”,“The Best IP Law Firm in China”, “China IP Law Firm”, “Tier 1 IP Law Firm of the Year” by Ministry of Justice of China, international legal directories and various business magazines such as Chambers Asia Pacific, The Asia Pacific Legal 500, Asialaw Profiles.

With over 350 professionals consist of attorney at law, patent attorneys, trademark attorneys, Chang Tsi & Partners is based in Beijing with fully fledged offices in Shanghai, Guangzhou, Shenzhen and branch offices in the US, Korea, Hong Kong, Taiwan, and Guangxi while establishing an enviable reputation in Intellectual Property and Litigation.

Our areas of practice include intellectual property rights, litigation and dispute resolutions, commercial law and other legal services. Since establishment, we have been a forerunner in various fields such as trademark, patent, IP confirmation, administrative IP as well as judicial protection. Our high-caliber Lawyers and our sharpest IP experts are dedicated to protecting your legal rights with efficiency and integrity.

At Chang Tsi & Partners you can find the knowledge, the experience, and the right professionals to deal with all aspects of law and with matters both domestic and international. The firm has been trusted by Chinese and International enterprises to develop strategic decisions and to secure their interests both in China and overseas.

  • Intellectual property
  • Dispute resolution
  • Labour and employment
  • Competition/antitrust
  • Regulatory

  • Aviation and shipping
  • Banking and financial services
  • Consumer goods and services
  • Industrials and manufacturing
  • Infrastructure
  • Materials
  • Media and entertainment
  • Mining
  • Oil and gas
  • Pharmaceuticals and life sciences
  • Real estate
  • Technology and telecommunications

A. Spring Chang

Representative Cases:

Represented Tiffany & Co. since 2002 and filed large numbers of applications, oppositions, and declarations of invalidity. Recently, Chang helped Tiffany & Co. gain well-known status for its trademark, enabling Tiffany & Co. to strengthen and protect its brand from various infringers.

Successfully persuaded the court to accept the Under Armour case, in which CNY 100,000,000 (roughly USD 15,000,000) was claimed in damages.

In the past 5 years, Chang has filed 13 litigations on behalf of Levi Strauss & Co. (LS&Co), successfully helping Levi Strauss & Co. to gain well-known recognition for the "LEVI'S" word mark and the Two Horses Design by the Trademark Review and Appeal Board.

Represented Encyclopedia Britannica in a trademark infringement case against Xinlei Publishing House; she successfully terminated all infringing activities, and the court awarded her client CNY 253,111 (roughly USD 40,824) in damages; she prepared a C&D letter, resulting in 34,500 returned copies of the infringing books and thus minimized the loss caused by the infringement.

Successfully represented Graco, the leader in fluid handling systems and components industry, in an infringement case: Shanghai Sanqi was ordered to issue a public apology and pay CNY 4,000,000 (roughly USD 600,000) in damages.

Represented PetroChina in a patent infringement case, worked closely with the inventors to clarify the invention process step-by-step, successfully highlighted the differences between the technical solutions, and protected the reputation of PetroChina.

Effectively represented Dart Industries to stop third party infringement, wherein the court ordered the infringing party to stop all manufacturing activities, destroy all inventory, turn over all molds, and Dart received CNY 150,000 (roughly USD 22,000) in damages.

Successfully represented Johnson & Johnson in several high stakes litigation cases (including criminal proceedings) before the Supreme People's Court of China.

B. Simon Tsi

Representative Cases:

The case Jianfa v Michael Kors (2018), in which Tsi represented Michael Kors, was awarded “2018 Matter of the Year” by Asialaw & Benchmark Litigation, and “China’s Top 10 Intellectual Property Cases of the Most Research Value” by Shanghai Intellectual Property Academe in 2018.

In Under Armour vs Fujian Ting Fei Long Sports Goods Co., Ltd.(2017), Tsi represented Under Armour in a claim for trademark infringement and unfair competition. Tsi’s actions in this case were recognized as “2017-2018 Excellent Trademark Agency Cases” by the Chinese Trademark Association, and it was reported by foreign media, including Law360. In this case, he persuaded the IP tribunal of Fujian Provincial High People’s Court to issue a second preliminary injunction in history. The client Under Armour was awarded damages of CNY 2 million (roughly USD 290,292).

In Skechers v. Spieth & Wensky, Tsi represented Skechers in a claim for trademark infringement and the decision was reported by China Intellectual Property News, China Industry & Commerce News and Beijing Business Today. The client Skechers was awarded damages of CNY 3 million (roughly USD 435,438).

Successfully represented clients in many complex matters, including retrial and corporate cases.

Provided IP protection strategy, IP transactions, brand licensing, intellectual property due diligence, intellectual property infringement and other legal services for many Fortune 500 companies.

Led the mergers and acquisitions project for Shen Hua Group Corporation Ltd. to purchase a mineral group in Xinjiang and several other private mineral enterprises in Inner Mongolia.

Counsel to many renowned domestic companies, such as China National Development Bank, China Airlines Co., Ltd., Beijing Capital Co., Ltd., etc.

Successfully represented Honeywell International Inc. in a trademark infringement & unfair competition case, in which HONEYWELL was recognized as a well-known trademark.

Successfully represented Johnson & Johnson and Mondelez in several high stakes litigation cases before the Supreme People’s Court of China

Worked with a number of government organizations , including universities, the justice department, the Ministry of Personnel, and the State Power Grid Construction Corporation.

Assisted many clients in the establishment of legal risk prevention, compliance and control.

Successfully represented a construction company in a complicated contract dispute against a Beijing real estate developer,involving RMB 320 million.

  • Shanghai
  • Guangzhou
  • Shenzhen
  • Hong Kong
  • Nanning
  • Seoul
  • Europe