FORM 6-K

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                        Report of Foreign Private Issuer
                    Pursuant to Rule 13a - 16 or 15d - 16 of
                       the Securities Exchange Act of 1934

                         For the month of January, 2008

                                HSBC Holdings plc

                              42nd Floor, 8 Canada
                         Square, London E14 5HQ, England


(Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F).

                          Form 20-F X Form 40-F ......

(Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934).

                                Yes....... No X


(If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b): 82- ..............)



The following news release was issued today by The Saudi British Bank (SABB),  a
40 per cent indirectly held associate of HSBC Holdings plc.

The  following  is the text of an  announcement  made today by Hang Seng Bank, a
62.14 per cent owned subsidiary of the HSBC Group.


                       HANG SENG SIGNS AGREEMENT TO BECOME
                   LARGEST SHAREHOLDER OF A MAINLAND CITY BANK

Hang Seng Bank (Hang Seng) today signed an  agreement  to  subscribe  for 20 per
cent of the enlarged share capital of Yantai City  Commercial  Bank (Yantai City
Bank) in mainland  China for a total  consideration  of RMB800  million  (US$103
million).  Upon successful completion of the share subscription,  Hang Seng will
become the largest  shareholder  of Yantai City Bank,  which  serves the rapidly
developing Bohai Economic Rim region.

The  share  subscription  and the  terms of the  agreement  are  subject  to the
approval of the China Banking Regulatory  Commission,  other relevant regulatory
authorities and  shareholders of Yantai City Bank. Hang Seng will have the right
to nominate Directors and to make  recommendations for various senior management
positions, including Vice President and department heads, at Yantai City Bank.

The  strategic  investment  in  Yantai  City Bank will  complement  Hang  Seng's
existing  foothold on the  Mainland as the  majority of Hang Seng's  outlets are
situated in the Pearl River Delta and  Yangtze  River Delta  regions.  Following
this latest  investment,  Hang Seng's  total  investment  on the  Mainland  will
increase to about RMB7.3 billion, including the capital injected into its wholly
owned subsidiary, Hang Seng Bank (China) Limited, in May last year.

Hong  Kong-listed  Wing Lung Bank will also take a 4.99 per cent stake in Yantai
City Bank, bringing the total foreign shareholding in the Mainland bank to 24.99
per cent. Under current Mainland regulations, the maximum aggregate shareholding
by all foreign investors in a domestic bank must not exceed 25 per cent.

Today's signing  ceremony in Yantai was attended by Mr Zhang Jianting,  Mayor of
Yantai, Mr Zhang Guangbo,  Vice Mayor of Yantai, Mr Zhuang Yonghui,  Chairman of
Yantai City Commercial Bank, Mr Raymond Or, Vice-Chairman and Chief Executive of
Hang Seng Bank and Dr Patrick Wu,  Vice-Chairman and Executive  Director of Wing
Lung Bank.

Mr Zhuang said: "In light of the  accelerating  pace of reform and opening up of
China's financial industry, the bringing in of Hang Seng as a strategic investor
will  facilitate the sharing of  experience,  enhance  corporate  governance and
promote a better business structure.  This will help us to achieve international
standards and enhance our market competitiveness."

"Wing Lung Bank's  participation as a financial  investor will also enhance both
the shareholding  structure and development of Yantai City Commercial  Bank," he
added.

Mr Or said: "This agreement is another  milestone in the rapid expansion of Hang
Seng's  business on the  Mainland.  The Bohai area will join the Pearl River and
Yangtze  River  Deltas as a key  business  region for Hang Seng.  Alongside  our
organic  growth,   we  will  actively   discuss  future   business   cooperation
opportunities with Yantai City Commercial Bank."

"Our agreement will also benefit the economic  development of the Bohai Economic
Rim and facilitate the exchange of banking experience and technical  expertise,"
Mr Or added.

Yantai is an  international  port city in the Bohai  Economic Rim region and the
second-largest  industrial  city in Shandong  Province.  Yantai has a very sound
economic  infrastructure.  In 2006,  the city's GDP grew by 17 per cent to reach
RMB240.2 billion.

Note to editors

Hang Seng Bank
Founded in 1933,  Hang Seng Bank  operates  around 150  branches  and  automated
banking  centres and 13  Business  Banking  Centres in Hong Kong.  The Bank also
maintains a branch in Shenzhen for foreign currency wholesale business, a branch
in Macau, and representative offices in Xiamen and Taipei.

Established  on 28 May 2007,  wholly  owned  subsidiary  Hang Seng Bank  (China)
Limited  operates a mainland  China network of 23 outlets in Beijing,  Shanghai,
Guangzhou, Dongguan, Shenzhen, Fuzhou, Nanjing, Hangzhou and Ningbo.

With consolidated  assets of HK$741.3 billion as at 30 June 2007, Hang Seng Bank
reported a profit attributable to shareholders of HK$8,867 million for the first
six months of 2007 and HK$12.04  billion in 2006.  Hang Seng Bank is a principal
member of the HSBC Group,  one of the  world's  largest  banking  and  financial
services organisations.  For further information on Hang Seng Bank, please visit
the bank's website at www.hangseng.com.

Yantai City Commercial Bank
Founded in 1997,  Yantai City Commercial Bank is the  second-largest  commercial
city bank in Shandong Province. According to its unaudited financial statements,
the Bank had total assets of RMB26.8  billion as at 31 December  2007. It has 68
outlets and over 1,200 staff.  The bank offers various  retail banking  services
including  deposits,  consumer loans and debit card  services,  as well as trade
finance,   remittance  and  other  commercial  banking  services.   For  further
information, please visit the bank's website at http://www.ytcb.com.



                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                               HSBC Holdings plc

                                                By:
                                                Name:  P A Stafford
                                                Title: Assistant Group Secretary
                                                Date:  31 January, 2008