1.Name of applicant:

Ardana plc

2. Name of scheme:

Ardana Bioscience Employees’ share option scheme

3. Period of return

From 03/11/07 to 02/05/2008

4. Balance under scheme from previous return:

567,324 ordinary shares of 1 pence

5. The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:

Nil

6. Number of securities issued/ allotted under scheme during period:

Nil

7. Balance under scheme not yet issued/allotted at end of period:

567,324

8. Number and class of securities originally listed and the date of admission:

55,562,806 ordinary shares admitted to listing on 9 March 2005

9. Total number of securities in issue at the end of the period

65,511,729

Contact for queries

Name:        Graham Lee, Ardana plc, 38 Melville Street, Edinburgh EH3 7HA

Telephone: 0131 226 8550

1. Name of applicant:

Ardana plc

2. Name of scheme:

Ardana Ltd Employees’ share option scheme

3. Period of return

From 03/11/07 to 02/05/2008

4. Balance under scheme from previous return:

1,277,834 ordinary shares of 1 pence

5. The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:

Nil

6. Number of securities issued/ allotted under scheme during period:

Nil

7. Balance under scheme not yet issued/allotted at end of period:

1,277,834

8. Number and class of securities originally listed and the date of admission:

55,562,806 ordinary shares admitted to listing on 9 March 2005

9. Total number of securities in issue at the end of the period

65,511,729

Contact for queries

Name:        Graham Lee, Ardana plc, 38 Melville Street, Edinburgh EH3 7HA

Telephone: 0131 226 8550

1. Name of applicant:

Ardana plc

2. Name of scheme:

Certain individual option agreements between Ardana plc and non-executive directors and non-employees

3. Period of return

From 03/11/07 to 02/05/2008

4. Balance under scheme from previous return:

286,266 ordinary shares of 1 pence

5. The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:

Nil

6. Number of securities issued/ allotted under scheme during period:

Nil

7. Balance under scheme not yet issued/allotted at end of period:

286,266

8. Number and class of securities originally listed and the date of admission:

55,562,806 ordinary shares admitted to listing on 9 March 2006

9. Total number of securities in issue at the end of the period

65,511,729

Contact for queries

Name:        Graham Lee, Ardana plc, 38 Melville Street, Edinburgh EH3 7HA

Telephone: 0131 226 8550