LAWYER PROFILE
Constance Choy

Constance Choy

Greater China Region 2026

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Sidley Austin
 Sidley Austin

Ranked in 2 practice areas

Capital Markets: Equity (International Firms)

China

16 years ranked

Corporate/M&A: Hong Kong-based (International Firms)

China

14 years ranked

About

Provided by Sidley Austin

Greater China Region

Practice Areas

CONSTANCE CHOY is a member of Sidley’s Management Committee and Executive Committee, the managing partner for the Asia Pacific region and the senior partner in our Hong Kong office. She is the global leader of our multidisciplinary China Corporate and Finance practice. Her practice covers a broad spectrum of securities, mergers and acquisitions and Hong Kong-listed companies work, including initial public offerings, secondary equity and equity-linked offerings, public company takeovers and reverse takeovers, as well as restructurings of listed companies.

Professional Memberships

England and Wales (Solicitor)

Hong Kong (Solicitor)

Personal

Schulich School of Business, York University, MBA, 1989

Osgoode Hall Law School, LL.M., 1987

University of Hong Kong, Postgraduate Certificate in Laws, 1985

University of Hong Kong, LL.B., 1984

Chambers Review

Provided by Chambers

Chambers Greater China Region

Capital Markets: Equity (International Firms) - China

Band 4
Individual Editorial
Constance Choy is head of Sidley Austin's China corporate and finance group and the firm's Asia-Pacific managing partner, offering clients three decades' experience advising on IPOs and H-share placements.
Learn more about this teamView ranking table

Corporate/M&A: Hong Kong-based (International Firms) - China

Band 6
Individual Editorial
Constance Choy heads Sidley Austin LLP's China corporate and finance group. She maintains an active practice advising Hong Kong and Mainland China-headquartered clients on their M&A transactions.
View ranking table

Strengths

Provided by Chambers

  • Choy is a very knowledgeable and experienced partner. She can always handle issues tactfully and give us very good advice.

    Corporate/M&A: Hong Kong-based (International Firms)Chambers Greater China Region

  • Constance Choy is hands-down one of the finest legal minds I've worked with at Sidley Austin. She is proactive, insightful and just relentlessly dedicated.

    Corporate/M&A: Hong Kong-based (International Firms)Chambers Greater China Region

Ranked Individuals at Sidley Austin (21)

China

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