Baker & McKenzie LLP
03/31/2026 | Press release | Distributed by Public on 03/30/2026 23:48
Baker McKenzie Advises Shanghai FourSemi Semiconductor on Global IPO and Listing on the Hong Kong Stock Exchange
Baker McKenzie has advised Shanghai FourSemi Semiconductor Co., Ltd. ("Shanghai FourSemi") in connection with its global offering and successful listing on the Main Board of The Stock Exchange of Hong Kong Limited.
Shanghai FourSemi is a provider of power amplifier audio chips and haptic drivers. Operating under a fabless business model, it specializes in the design of low-power audio chips, mid/high-power audio chips and haptic drivers, offering a wide array of solutions for emerging consumer electronics and intelligent vehicles. It had introduced China's first ASIC DSP-integrated portable power amplifier audio chips in 2017, the first mid/high-power audio chip in 2021, and the country's first automotive-grade AEC-Q100-certified power amplifier audio chip in 2023. Shanghai FourSemi has been integrated into the supply chains of global leading Korean and Chinese smartphone brands, and has strong partnerships with automotive manufacturing leaders in the country. In 2024, Shanghai FourSemi achieved a total annual global shipment volume of 460 million power amplifier audio chips, ranking third globally and second in China. Proceeds from the offering will support the establishment of a new R&D center, the procurement of automated testing equipment, the construction of an in-house automatic testing verification line, the recruitment of supply chain managing engineers, and strategic acquisitions and partnerships to further strengthen its industry position.
The transaction was led by Winfield Lau, (Partner, Capital Markets), Dan Ouyang, Partner and co-chair of Baker McKenzie's Asia Pacific and China Capital Markets Practices, Ronnie Li and Zhenzhen Bao, Senior Counsel in the International Capital Markets practice at FenXun Partners*. Other members of the team included Senior Associate Haoqian Chen, Associates Celia Li, Giselle Ma, Yude Shen and Chenxi Yue.
Commenting on the transaction, Winfield Lau said: "We are honored to support Shanghai FourSemi in reaching this significant milestone. As a key provider of power amplifier audio chips and haptic drivers, Shanghai FourSemi is well positioned to take its business to the next level of growth. This transaction once again demonstrates Baker McKenzie's leadership and breadth of experience in the fast evolving convergence of technology and capital markets."
With deal practitioners in over 40 jurisdictions, Baker McKenzie is a transactional powerhouse specializing in complex cross-border matters. Over the past three years, the firm has assisted clients in raising capital across more than 40 stock exchanges worldwide. Baker McKenzie has been ranked for capital markets in more jurisdictions than any other law firm by Chambers.
*Baker McKenzie established a joint operation office with FenXun in China as Baker McKenzie FenXun, approved by the Shanghai Justice Bureau in 2015.
Shanghai FourSemi is a provider of power amplifier audio chips and haptic drivers. Operating under a fabless business model, it specializes in the design of low-power audio chips, mid/high-power audio chips and haptic drivers, offering a wide array of solutions for emerging consumer electronics and intelligent vehicles. It had introduced China's first ASIC DSP-integrated portable power amplifier audio chips in 2017, the first mid/high-power audio chip in 2021, and the country's first automotive-grade AEC-Q100-certified power amplifier audio chip in 2023. Shanghai FourSemi has been integrated into the supply chains of global leading Korean and Chinese smartphone brands, and has strong partnerships with automotive manufacturing leaders in the country. In 2024, Shanghai FourSemi achieved a total annual global shipment volume of 460 million power amplifier audio chips, ranking third globally and second in China. Proceeds from the offering will support the establishment of a new R&D center, the procurement of automated testing equipment, the construction of an in-house automatic testing verification line, the recruitment of supply chain managing engineers, and strategic acquisitions and partnerships to further strengthen its industry position.
The transaction was led by Winfield Lau, (Partner, Capital Markets), Dan Ouyang, Partner and co-chair of Baker McKenzie's Asia Pacific and China Capital Markets Practices, Ronnie Li and Zhenzhen Bao, Senior Counsel in the International Capital Markets practice at FenXun Partners*. Other members of the team included Senior Associate Haoqian Chen, Associates Celia Li, Giselle Ma, Yude Shen and Chenxi Yue.
Commenting on the transaction, Winfield Lau said: "We are honored to support Shanghai FourSemi in reaching this significant milestone. As a key provider of power amplifier audio chips and haptic drivers, Shanghai FourSemi is well positioned to take its business to the next level of growth. This transaction once again demonstrates Baker McKenzie's leadership and breadth of experience in the fast evolving convergence of technology and capital markets."
With deal practitioners in over 40 jurisdictions, Baker McKenzie is a transactional powerhouse specializing in complex cross-border matters. Over the past three years, the firm has assisted clients in raising capital across more than 40 stock exchanges worldwide. Baker McKenzie has been ranked for capital markets in more jurisdictions than any other law firm by Chambers.
*Baker McKenzie established a joint operation office with FenXun in China as Baker McKenzie FenXun, approved by the Shanghai Justice Bureau in 2015.
Baker & McKenzie LLP published this content on March 31, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 31, 2026 at 05:48 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]