Exhibit 99.1

Willis to Purchase 50% Stake in China's Leading Insurance Broker

    NEW YORK--(BUSINESS WIRE)--April 8, 2004--Willis Group Holdings
(NYSE: WSH), the global insurance broker, today announces that it has
received approval from the China Insurance Regulatory Commission to
complete the purchase of a 50% equity stake in Shanghai Pudong
Insurance Brokers Ltd.
    Shanghai Pudong Insurance Brokers Ltd is a leading Chinese
insurance broker licensed to transact both insurance and reinsurance,
life and non-life, for domestic and foreign clients throughout the
People's Republic of China (PRC). It currently has 10 branch offices
and 13 sales offices throughout the country and employs 150 people.
    Upon completion of the equity purchase both parties intend to
change the name to Willis Pudong Insurance Brokers Ltd, headquartered
in Shanghai, PRC.
    Welcoming the approval, Joe Plumeri, Chairman and CEO of Willis,
said, "This is a significant step in Willis' global expansion. We know
the Chinese market very well, having been closely involved with
Chinese insurers and the placement of Chinese reinsurance business for
over 50 years. Many of our clients have significant operations in
China and I am delighted that we will be able to support their
presence with a level of service and expertise consistent with the
standards we adopt worldwide.
    "We are especially pleased to be partnering with Shanghai Pudong
Insurance Brokers. They have shown themselves to be leaders in the
Chinese insurance broking industry, expertly serving the risk transfer
and risk management needs of many Chinese enterprises. Moreover, their
office network ensures they are able to provide a full service
throughout the country.
    "This partnership, which combines Willis' global resources with
local knowledge and service delivery, will be a powerful force in the
development of the Chinese insurance broking industry and Willis".
    Willis Group Holdings Limited is a leading global insurance
broker, developing and delivering professional insurance, reinsurance,
risk management, financial and human resource consulting and actuarial
services to corporations, public entities and institutions around the
world. With over 300 offices in more than 100 countries, its global
team of 13,000 associates serves clients in some 180 countries.
Additional information on Willis may be found on its web site
www.willis.com.

    CONTACT: Willis Group Holdings
             Investors:
             Kerry K. Calaiaro, +1 212 837-0880
             Email: calaiaro_ke@willis.com
             Media:
             Nicholas Jones, +1 44 20 7488-8190
             Email: jonesnr@willis.com
             Dan Prince, +1 212 837-0806
             Email: prince_da@willis.com