The Cayman Islands Stock Exchange hereby admits the following securities to the official list:

Name of Issuer:                      Seligman Tech Spectrum Fund 

Number and Description of Securities:

Up to 500,000,000 participating redeemable voting shares, issued as:

Class A1 Series 18 / Class A2 Series 16

Class A1 Series 19 /  Class A2 Series 17

Class A1 Series 20 /  Class A2 Series 18

Class A1 Series Transfer 3

Type of issue:                         Primary listing of an open-end mutual fund

From:                                       4:00 p.m. on 18 December, 2009