Recently, Beijing Tangsong Yongxin Intellectual Property Agency Co., Ltd. was rated as a Level-1 Intellectual Property Cooperation Organization by its client Sunny Optical Technology (Group) based on its intellectual property legal services in the previous year.

Sunny Optical Technology (Group) Co., Ltd., founded in 1984, is a world-leading manufacturer of comprehensive optical components and products. Listed on the Main Board of the Hong Kong Stock Exchange in June 2007 (Stock Code: 2382.HK), it is the first domestic optical enterprise listed in Hong Kong. It was successfully included in the Hang Seng Index Constituent Stocks in 2017 and the Hang Seng China Enterprises Index for the first time in 2020. The company has been listed on the Fortune China 500 list for nine consecutive years and ranked among China Top 500 Enterprises for the first time in 2020. Beijing Tangsong Yongxin Intellectual Property Agency Co., Ltd. is a professional intellectual property legal service institution established under the guidance of Beijing Caihe Law Firm. It is one of the institutions with a credit rating of A+ accounting for about 2% on the National Patent Agency Information Publicity Platform of the National Intellectual Property Administration. Since its establishment six years ago, it has focused on case quality and customer service experience, and has grown steadily based on customer word-of-mouth recommendations. Currently, it serves more than 200 clients, including institutions of higher learning, scientific research institutes, industry giants and start-ups, covering the Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta, Chengdu-Chongqing and other regions. Tangsong Yongxin has always adhered to devoting its limited energy to customer services. The rampant industry awards and exaggerated institutional publicity are not within Tangsong Yongxin's consideration, and customer recognition is the goal that Tangsong Yongxin has always pursued.