1. American Mine Research, Inc. MINE NET TM Tagging, Tracking & Two Way Communication System

2. Mine Net TM System Tagging and Tracking – Operators can track the movement of miners and equipment in the mine continuously and receive messages from underground – Communicates through twisted pair copper or fiber to the surface – Incorporated into existing MC-4000 systems or stand-alone Two-way wireless communications via Text Messaging

3. Mine Net TM System

4. Mine Net TM System Smart Reader  Readers are typically installed at each belt drive and as needed for maximum coverage ( estimate every 1500 ft.)  Each Reader has up to four antennas to cover multiple entries  Antennas can pick up tags from approximately 300-500 ft. line of sight providing 600-1000 ft. coverage  Battery back-up option 96 hours available

5. Mine Net TM Smart Reader Mine Net TM Smart Reader DATA TAGGING TRACKING MESSAGING DATA TAGGING TRACKING MESSAGING POWERON EXT VOLTAGEGOOD/LOW/OFF BATTERYFULL/CHARGE/LOW COMMGOOD/BAD ZONE A ZONE B ZONE C ZONE D TAG/DATA RED = NO SIGNAL Mine Net TM System Smart Reader Reader Status Signals Antenna Status 4 Antenna Ports

6. Mine Net TM System Active Net Tag Mounted on hard hats, belts, cap-lamp batteries, carried in pockets, or equipment as required by the mine. Light-weight and ultra- durable Provides ID#, picture, battery level, and message codes every 1.4 seconds Emits a digital sequence over radio waves read by the Reader Transmits up to 8 coded messages by pressing the tactile button in a desired sequence.  Approved as Intrinsically Safe by MSHA AMERICAN MINE RESEARCH MINE NET TM PERMISSIBLE TAG United States Department of Labor MSHA Mine Safety and Health Administration APPROVAL NO. 23-A0070007-0 TESTED FOR INTRINSIC SAFETY IN METHANE-AIR MIXTURES ONLY WARNING: NO USER SERVICABLE ACCESS Message Button

7. Mine Net TM System Tag Messaging Codes Tag can be placed under miner cap’s brim, on side or back of hard hat

8. Mine Net TM System Software

9. Mine Net TM System Graphics Zone 5BZone 5A Zone 2AZone 2B Zone 1CZone 1B Zone 1A Saxton Graf Adkins Gunnoe Smith Parks Morfield Simmons Johns Carter Lambert Waddell Hall Beavers Baker Snow Yearout Dunn Hatfield Mould Zone 1B

10. Mine Net TM System Graphics Zone 5BZone 5A Zone 2AZone 2B Zone 1CZone 1B Zone 1A Lambert Waddell Hall Beavers Baker Snow Yearout Dunn Hatfield Mould Zone 1B Saxton Graf Adkins Gunnoe Smith Parks Morfield Simmons Johns Carter

11. Mine Net TM System Graphics Zone 5BZone 5A Zone 2AZone 2B Zone 1B Zone 1A Zone 1C Saxton Graf Adkins Gunnoe Zone 2A Smith Parks Morfield Simmons Johns Carter Zone 1B Lambert Waddell Hall Beavers Baker Snow Yearout Dunn Hatfield Mould

12. Mine Net TM System Graphics Zone 5BZone 5A Zone 2AZone 2B Zone 1B Zone 1A Zone 1C Saxton Graf Adkins Gunnoe Yearout Dunn Hatfield Mould Zone 2B Smith Parks Morfield Simmons Johns Carter Zone 2A Lambert Waddell Hall Beavers Baker Snow

13. Mine Net TM System Graphics Zone 5BZone 5A Zone 2AZone 2B Zone 1B Zone 1A Zone 1C Saxton Graf Adkins Gunnoe Yearout Dunn Hatfield Mould Zone 2B Smith Parks Morfield Simmons Johns Carter Zone 5A Lambert Waddell Hall Beavers Baker Snow

14. Mine Net TM System Graphics Zone 5A Zone 2AZone 2B Zone 1B Zone 1A Zone 1C Saxton Graf Adkins Gunnoe Yearout Dunn Hatfield Mould Zone 2B Smith Parks Morfield Simmons Johns Carter Zone 5A Beavers Baker Snow Zone 5B Lambert Waddell Hall

15. Mine Net TM System Reader Status

16. Communicates 2 ways via text messaging through the Smart Readers Syncs to Readers Acts as Tag and Reader Compose, Send, Receive and Save messages with over 120 characters, symbols, and mine abbreviations Send Selection: one, few, all, or to base Each messenger serves as a beacon finder to any other messenger or tag Mine Net TM System Text Messenger