DE|EN

contact persons

Management board

Dr.

Jürgen  Aretz

Managing Director

+49 0 2362 2005 11
+49 0 2362 2005 18

Sales organisation

Dipl.-Ing.

Holger  Vespermann

sales manager, proxy holder

+49 02362 - 2005-30
+49 02362 - 2005-99
Carsten  Kindermann

Deputy Sales Manager

+49 02362 - 2005-31
+49 02362 - 2005-99
Tolga  Kocbey

Filterquartz, Foundry, Refractory industry

+49 0 2362 2005 37
+49 0 2362 2005 99
Andrea  Berger

Disposition and Freight

+49 02362 - 2005-36
+49 02362 - 2005-99
Ute  Seidler

(Only Monday,Tuesday and Friday): Building chemistry, Coloured quartz, Damp gravel and Damp sand

+49 0 2362 - 2005-34
+49 0 2362 - 2005-34
Tanja  Voss

(Only Tuesday to Friday): Disposition and Freight

+49 2362 2005-34
+49 2362 2005-99

Raw material / QM/UM - Management

Dr.-Ing.

Peter  Vossen

raw materials planing, environmental and quality management, proxy holder

+49 (0)2362 - 2005-54
+49 (0)2362 2005-99
Gabriele  Hanauer

Secretary

+49 (0)2362 2005-42
+49 (0)2362 2005-99

Plant Dorsten

Norbert  Jarecki

plant manager Dorsten and Salzbergen, proxy holder

+49 (0)2362 - 9121-13
+49 (0)2362 - 45833

Plant Laußnitz

Wolfram  Streller

Plant Manager, Proxy Holder Deputy Sales Manager

+49 035205 - 527-26
+49 035205 - 527-12
Kerstin  Gäbler

Secretary

+49 (0)35205 - 527-0
+49 (0)35205 - 527-12

Purchase

Dipl. Betrw.

Bernd  Dziurdza

purchase manager

+49 (0)2362 - 2005-29
+49 (0)2362 - 2005-99
Thomas  Sowa

purchasing clerk

+49 (0)2362 2005-24
+49 2362 2005-99

Human resources

Cornelia  Franken

personnel manager

+49 (0)2362 2005-22
Senait  Gilamariam
+49 2362 2005 22
+49 2362 2005 61
Lisa  Merscher
+49 2362 2005-58
+49 2362 2005 61