RSH.024.008.0001 TRANSLATION FROM THE GERMAN ORIGINAL Arnsberg Regional Administration <Coat of Arms of Department 6, Mines and Energy in North Copy Rhine-Westphalia North-Rhine Westphalia> Approval notification for the Strata Bond two-component - polyurethane resin system On the basis of Section (§) 4, Para. 1, Point 2 of the Mining Regulation for the protection of workers’ health (“GesBergV”) in the currently valid version, the following decision has been made: 1. DYWIDAG Systems International GmbH, Destouchesstrasse 68, D-80796 Munich, is granted a general permit for underground activities with the above mentioned product (described in further detail below) in response to the request of 25 July 2014: 1.1 Product designation/brief description: Product designation Strata Bond two-component - polyurethane resin system Polyol - (A -) component: Specification: Strata Bond A Isocyanat - Komponente: Specification: Important note (because of further digital post-processing): Please do not clip, staple or glue documents, and send in DIN A4 format where possible. Translation from the German RSH.024.008.0002 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 2 of 19 Strata Bond B DYWIDAG Systems International GmbH Marketing authorization Destouchesstrasse 68 holder: D-80796 Munich It is a two-component system that is pressed into holes premixed into drilled holes and which forms a polyurethane resin by reaction of the components. It serves the purpose of rock strengthening, injection anchoring and sealing against gas and water. The components are supplied in the following packages: • Plastic containers of up to 30 litres • Tinplate containers of up to 30 litres • Rolled rim barrel, contents up to 220 l Brief description / • Reusable container, information on the contents up to 1000 l composition and type and size of packages: Permitted combinations of components: • Strata Bond A / Strata Bond B Maximum reaction temperature as per Test arrangement: 146.53 ° C (Measured values based on 30°C preheating) Formulation: Polyol-(A-) component: Yellowish liquid with specific odour, essentially of polyol Translation from the German RSH.024.008.0003 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 3 of 19 Formulation: Isocyanate-(A-) component: Brown liquid with specific odour, essentially of isocyanate Mixing ratio: The volumes are mixed in a ratio of 1:1 (volumetrically) 1.2 Delivery and use according to the marketing authorization holder: The product is filled as two components, separated by the producer. At the point of use, the components in processing facilities provided for this purpose in accordance with the mixing ratio specified by the manufacturer, and pressed into the rock through drilled holes. The product hardens due to the reaction that begins upon mixing. The reaction product of the two components is a polyurethane synthetic resin. It serves the purpose of rock strengthening, injection anchoring, and sealing against gas and water. The reaction proceeds giving off heat. It is influenced by water. The volume increases as the reaction proceeds. 2. This decision is based on the following documents 2.1 Application of 25 July 2014 2.2.1 Safety Data Sheets on Translation from the German RSH.024.008.0004 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 4 of 19 Strata Bond A from 16 May 2014, as of 19 May 2014 Strata Bond B from 3 January 2013, as of 21.03.2014 2.1.2 Technical Data Sheet on Strata Bond B from 20 December 2012, as of 31 March 2014 2.1.3 Test reports from the Hygiene Institute of the Ruhr Area, Gelsenkirchen 11.07.2014 - A - 245 807 - 14 - Bi - 19.08.2014 - A - 247 121 - 14 - Bi - 2.1.4 Test report of DEKRA EXAM GmbH, specialist unit for respiratory protection, Essen, of 23 June 2014 - No. 8208 / 2014 / 3 -. 2.1.5 Test report of DMT GmbH, Institute for Fire Protection, Dortmund, of 20 May 2014 - 206 437 30-10 - GS - BS - Mö / Man 2.1.6 Beckmann, Uwe: “MDI – haltige Gebirgskleber im deutschen Steinkohlenbergbau (Polyurethan – und Silikatinjektionsharze)”, “Kompass” Journal, Editions 5 and 6, 2005, P. 18-20, in connection with the Test Report of the “Institut für Gefahrstoff – Forschung) Institute of Hazardous Substances - Research (IGF) of the Bergbau Berufsgenossenschaft (mining industry trade association) Bochum, of 18 June 2004 - A 5898/04 3. Incidental provisions Without prejudice to the provisions of the Gefahrstoffverordnung (Hazardous Substances Ordinance) on the packaging and labelling of dangerous substances, this authorization is granted with the following additional incidental provisions: 3.1 General 3.1.1 The authorization holder shall notify the users, in full and promptly and in an appropriate manner, of the requirements related to this approval for activity with the product. Translation from the German RSH.024.008.0005 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 5 of 19 3.1.2 We reserve the right to take samples of the product or its components in order to investigate correspondence with the approved composition and the terms of the approval notification. In the case of reported significant deviations, the authorization holder shall bear the expenses incurred by the authority in connection with sampling and testing. 3.1.3 This approval may only be further distributed in its entirety. 3.2 Requirements of the product, labelling, and packaging 3.2.1 The product referred to in the specifications as per No. 1.1, as well as permissible combinations of the components may only be distributed or used in the composition referred to in the documentation as per point No. 2. 3.2.2 The approval ceases to be valid, if • Any change is made to the composition or nature of the components used in the product, • There is a change in the name of the product or • The manufacturer or business concerned does not correspond with the manufacturer or business specified as authorization holder. 3.2.3 The delivery package for the components must bear at least the following permanent labels (this information must be adjusted accordingly in the event of any change to the labelling requirements): • Polyol-(A-) component: Translation from the German RSH.024.008.0006 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 6 of 19 Name of the authorization DYWIDAG Systems International GmbH holder: Destouchesstrasse 68 D - 80796 München Certification mark of the E 62.12.22.67 - 2014 - 3 Arnsberg Regional Administration, Dept. 6, Mines and Energy in North Rhine-Westphalia - :* Designation of the Strata Bond component Designation of the Strata Bond A component Manufacturing / filling (For example, 09/14 - Shelf-life specification month and year *. or equivalent batch encoding) –* Do not spray. Xn Hazardous to health R 22 Hazardous to health if swallowed. If swallowed, seek medical advice / medical S 46 attention immediately. Display the packaging or label. Future inscriptions in accordance with Regulation (EC) No. 1272 / 2008: Name of the authorization DYWIDAG Systems International GmbH holder: Destouchesstrasse 68 D - 80796 München Certification mark of the E 62.12.22.67 - 2014 - 3 Arnsberg Regional Administration, Dept. 6, Mines and Energy in North Rhine-Westphalia – :* Translation from the German RSH.024.008.0007 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 7 of 19 Product designation: Strata Bond Designation of the Strata Bond A component Manufacturing / filling For example, 09/14 - Shelf-life specification month / year or equivalent batch encoding) * Do not spray. GHS 07 Signal word Attention H 302 Harmful if swallowed. Keep the product container or label at hand P 101 in the event of medical advice being needed. • Isocyanate – (B–) component: Name of the authorization DYWIDAG Systems International GmbH holder: Destouchesstrasse 68 D - 80796 München Certification mark of the E 62.12.22.67 - 2014 - 3 Arnsberg Regional Administration, Dept. 6, Mines and Energy in North Rhine-Westphalia – :* Translation from the German RSH.024.008.0008 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 8 of 19 Product designation: Strata Bond Designation of the Strata Bond B component Manufacturing / filling (For example, 09/14 - Shelf-life specification month and year *. or equivalent batch encoding) –* Do not spray. –* Contains diphenyl - 4,4'- diisocyanate * Follow the manufacturer's instructions. Xn = Hazardous to health R 20 Harmful if inhaled. R 36 / 37 / 38 Irritates eyes, respiratory organs and skin. R 40 Suspected carcinogenic effect. R 42 / 43 Sensitization though skin contact possible Harmful to health: may cause severe health R 48 / 20 damage following prolonged exposure by ingestion. S 23 Do not inhale vapour or droplets. S 24 / 25* Avoid skin and eye contact. Translation from the German RSH.024.008.0009 Arnsberg Regional Administration Department 6, Mines and Energy in North Rhine-Westphalia Page 9 of 19 In case of contact with eyes rinse S 26 immediately and thoroughly with plenty of water, and consult a physician. After contact with skin, wash with plenty of S 28* water At work, wear suitable protective clothing, S 36 / 37 / 39* gloves and eye/face protection. Wear suitable respiratory equipment if there S 38* is insufficient ventilation. In case of accident or feelings of sickness, S 45 seek medical advice immediately