FORM 38.5(a)
DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS
WITH RECOGNISED INTERMEDIARY STATUS
DEALING IN A CLIENT-SERVING CAPACITY
(Rule 38.5(a) of the Takeover Code)
1. KEY INFORMATION
+-------------------------------------------------------------------+
| Name of exempt principal trader | HSBC Bank Plc |
|----------------------------------------------+--------------------|
| Company dealt in | Rio Tinto Plc |
|----------------------------------------------+--------------------|
| Class of relevant security to which the | Ordinary Shares |
| dealings being disclosed relate (Note 1) | |
|----------------------------------------------+--------------------|
| Date of dealing | 28th November 2007 |
+-------------------------------------------------------------------+
2. DEALINGS (Note 2)
(a) Purchases and sales
+-------------------------------------------------------------------+
| Total number of | Highest price paid | Lowest price |
| securities | (Note 3) | paid |
| purchased | | (Note 3) |
|---------------------------+--------------------+------------------|
| 56,205 | GBP 53.49 | GBP 50.57 |
+-------------------------------------------------------------------+
+-------------------------------------------------------------------+
| Total number of | Highest price | Lowest price |
| securities | received | received |
| sold | (Note 3) | (Note 3) |
|-------------------------+--------------------+--------------------|
| 56,029 | GBP 53.42 | GBP 50.48 |
+-------------------------------------------------------------------+
(b) Derivatives transactions (other than options)
+-------------------------------------------------------------------+
| Product name, | Long/short | Number of | Price per |
| e.g. CFD | (Note 4) | securities | unit |
| | | (Note 5) | (Note 3) |
|----------------+------------+---------------------+---------------|
| | | | |
+-------------------------------------------------------------------+
(c) Options transactions in respect of existing securities
(i) Writing, selling, purchasing or varying
+------------------------------------------------------------------------------------------+
|Product |Writing, |Number of securities to|Exercise|Type, e.g.|Expiry|Option |
|name,e.g|selling, |which the option |price |American, |date |moneypaid/received|
|call |purchasing,|relates (Note 5) | |European | |per unit (Note 3) |
|option |varying etc| | |etc. | | |
|--------+-----------+-----------------------+--------+----------+------+------------------|
| | | | | | | |
+------------------------------------------------------------------------------------------+
(ii) Exercising
+-------------------------------------------------------------------+
| Product name, e.g. | Number of securities | Exercise price per |
| call option | | unit |
| | | (Note 3) |
|-----------------------+----------------------+--------------------|
| | | |
+-------------------------------------------------------------------+
3. OTHER INFORMATION
Agreements, arrangements or understandings relating to options or
derivatives
Full details of any agreement, arrangement or understanding between
the person disclosing and any other person relating to the voting
rights of any relevant securities under any option referred to on
this form or relating to the voting rights or future acquisition or
disposal of any relevant securities to which any derivative referred
to on this form is referenced. If none, this should be stated.
..................................................
..................................................
+-------------------------------------------------------------------+
| Date of disclosure | 29th November 2007 |
|----------------------------------------------+--------------------|
| Contact name | Frances Davies |
|----------------------------------------------+--------------------|
| Telephone number | 0207 991 6661 |
|----------------------------------------------+--------------------|
| Name of offeree/offeror with which connected | BHP Billiton Plc |
|----------------------------------------------+--------------------|
| Nature of connection (Note 6) | Connected Advisor |
+-------------------------------------------------------------------+
Notes
The Notes on Form 38.5(a) can be viewed on the Takeover Panel's
website at www.thetakeoverpanel.org.uk
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