07/0275
NOTICE N.º 0275/07
We hereby inform that, for having reached the maturity on 9th March, 2007, one was cancelled, on 13 of the present month, the registry of the following issues of warrants issued by UBS AG:
| Code | Name |
| KUVSWE | Warrants s/ DJ euro stoxx 50 - Call - 3800 eur - 09.03.07 |
| KUVTWE | Warrants s/ DJ euro stoxx 50 - Call - 3900 eur - 09.03.07 |
| KUVUWE | Warrants s/ DJ euro stoxx 50 - Call - 4000 eur - 09.03.07 |
| KUVVWE | Warrants s/ DJ euro stoxx 50 - Call - 4100 eur - 09.03.07 |
| KUVWWE | Warrants s/ DJ euro stoxx 50 - Call - 4300 eur - 09.03.07 |
| KUVXWE | Warrants s/ DJ euro stoxx 50 - Put - 3700 eur - 09.03.07 |
| KUVYWE | Warrants s/ DJ euro stoxx 50 - Put - 3400 eur - 09.03.07 |
| KUVZWE | Warrants s/ DJ euro stoxx 50 - Put - 3200 eur - 09.03.07 |
| KUW1WE | Warrants s/ DJ euro stoxx 50 - Put - 3600 eur - 09.03.07 |
| KUW2WE | Warrants s/ DJ euro stoxx 50 - Put - 3800 eur - 09.03.07 |
| KUWXWE | Warrants sobre DAX - Call - 5800 eur - 09.03.2007 |
| KUWYWE | Warrants sobre DAX - Call - 6000 eur - 09.03.2007 |
| KUWZWE | Warrants sobre DAX - Put - 5200 eur - 09.03.2007 |
| KUX1WE | Warrants sobre DAX - Put - 5400 eur - 09.03.2007 |
| KUX2WE | Warrants sobre DAX - Put - 5600 eur - 09.03.2007 |
| KUX3WE | Warrants sobre DAX - Put - 5700 eur - 09.03.2007 |
| KUX4WE | Warrants sobre DAX - Put - 5800 eur - 09.03.2007 |
| KUX5WE | Warrants sobre DAX - Call - 6400 eur - 09.03.2007 |
| KUX6WE | Warrants sobre DAX - Call - 6200 eur - 09.03.2007 |
| KUX7WE | Warrants sobre DAX - Call - 5900 eur - 09.03.2007 |
INTERBOLSA, 14th March, 2007