1. ALLOYS LISTED IN UBA’S HYGIENIC LIST SARBAK METAL PUBLICATION DATE: 09.05.2014 UBA REVISION DATE: 20.12.2013 3. REVISION SARBAK METAL TİC. VE SAN. A.Ş. www.sarbak.com.tr www.ekosari.com

2. SARBAK METAL TİC. VE SAN. A.Ş. CW509L CuZn40 % Cu% Al% Fe% Ni% Pb% Sn% Zn 59,5- 61,5 0,05 max. 0,2 max. remainder CW510L CuZn42 % Cu% Al% Fe% Ni% Pb% Sn% Zn 57,0- 59,0 0,05 max. 0,3 max. 0,2 max. 0,3 max. remainder CW511L CuZn38As % Cu% Al% Fe% Ni% Pb% Sn% Mn%As% Zn 61,5- 63,5 0,05 max. 0,1 max. 0,3 max. 0,2 max. 0,1 max. 0,02- 0,15 remainder

3. SARBAK METAL TİC. VE SAN. A.Ş. CW612N CuZn39Pb2 % Cu% Pb% Al% Fe% Ni% Si% Sn% Zn 59,0- 60,0 1,6- 2,2 0,05 max. 0,3 max. 0,1 max. 0,03 max. 0,3 max. remainder CW617N CuZn40Pb2 % Cu% Pb% Al% Fe% Ni% Si% Sn% Zn 57,0- 59,0 1,6- 2,2 0,05 max. 0,3 max. 0,1 max. 0,03 max. 0,3 max. remainder CW603N CuZn36Pb3 % Cu% Pb% Al% Fe% Ni% Si% Sn% Zn 60,0- 62,0 2,5- 3,5 0,05 max. 0,3 max. 0,2 max. 0,03 max. 0,3 max. remainder CW614N CuZn39Pb3 % Cu% Pb% Al% Fe% Ni% Si% Sn% Zn 57,0- 59,0 2,5- 3,5 0,05 max. 0,3 max. 0,2 max. 0,03 max. 0,3 max. remainder

4. SARBAK METAL TİC. VE SAN. A.Ş. CB752S CuZn35Pb2Al-B % Cu% Pb% As% Al% Ni% Fe% Sn% Mn % Zn 61,0- 63,0 1,4- 1,6 0,09- 0,13 0,5- 0,7 0,2 max. 0,3 max. 0,1 max. remainder CW626N CuZn33Pb1,5AlAs % Cu% Pb% Al% As% Ni%Mn% Sn% Fe% Zn 64,0- 66,0 1,2- 1,7 0,8- 1,0 0,02- 0,15 0,2 max. 0,1 max. 0,3 max. remainder CW724R CuZn21Si3P % Cu% Si% P% Pb% Ni% Mn% Sn%Fe%Al% Zn 75,0- 77,0 2,7- 3,5 0,02- 0,1 0,1 max 0,2 max. 0,05 max. 0,3 max. 0,05 max. remainder Not1: Each other impurity < 0,02 %

5. SARBAK METAL TİC. VE SAN. A.Ş. Processing Properties Free Machining Hot Stamping Cold Deformation Stress Corrosion Resistance Dezincification Resistance Requirement of stress relief heat treatment CW509L % 50 Very good Moderate ** CW510L % 70 Excellent Moderate Poor**** CW511L (DZR BRASS) % 40 GoodExcellent * ECOBRASS CW724R % 80Very GoodExcellent * CW612N% 85Moderate Very goodGoodPoor ** CW617N% 90 ExcellentGood Poor *** CW603N% 97Moderate GoodPoor ** CW614N% 100 Very goodGood Poor *** CW626N% 80 Good Moderate GoodExcellent *

6. Please specify on order, if hygienic list compliance needed. For CW511L and CW626N alloys after the forging process, heat treatment should be 2 hours at 500 °C for meeting the conditions of EN ISO 6509. According to process conditions, temperature and time can be change. SARBAK METAL TİC. VE SAN. A.Ş.