As of Monday, May 27, 2013, Close Brothers Seydler Bank AG, Frankfurt am Main (Germany) assumes the obligation as market maker for the following instrument:
| Shares | SCHOELLER-BLECKMANN OILFIELD EQUIPMENT AG |
| ISIN | AT0000946652 |
| Short code | SBO |
| Max.-spread | 3% |
| Min.-size | 400 shares |