| | GEOTECHNICAL DRILLING, SAMPLING, AND IN-SITU TESTING FOR CY26 ROKFC IN-KIND, A25R500, RUNWAY (AV220, SALS), USAG HUMPHREYS | HEESONG GEOTEK CO., LTD. | $30,692 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Jan 18, 2026 | Jan 21, 2026 | Apr 21, 2026 |
| | GEOTECHNICAL DRILLING AND SAMPLING AND IN-SITU TESTING FOR TWO (2) PROJECTS AT POHANG AIR BASE AND USAG HUMPHREYS, REPUBLIC OF KOREA HEESONG GEOTEK | HEESONG GEOTEK CO., LTD. | $51,262 | DEPT OF THE ARMY | IMMEDIATE OFFICE OF THE SECRETARY OF DEFENSE | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Nov 25, 2025 | Nov 26, 2025 | Feb 18, 2026 |
| | SITE-SPECIFIC SEISMIC STUDY AT CP CARROLL, CP MUJUK, AND OSAN AB. | HEESONG GEOTEK CO., LTD. | $61,440 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | May 28, 2025 | May 28, 2025 | Nov 25, 2025 |
| | DRILLING SERVICES, USAG HUMPHREYS | HEESONG GEOTEK CO., LTD. | $82,560 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Feb 4, 2025 | Feb 6, 2025 | Aug 8, 2025 |
| | DRILLING SERVICE AT CFA CHINHAE AND KUNSAN AB, KOREA | HEESONG GEOTEK CO., LTD. | $89,360 | DEPT OF THE ARMY | DEPT OF THE NAVY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Oct 10, 2024 | Oct 10, 2024 | Apr 8, 2025 |
| | GEOTECHNICAL DRILLING- 2ND TASK ORDER | HEESONG GEOTEK CO., LTD. | $123,744 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Apr 2, 2024 | Apr 2, 2024 | Sep 29, 2024 |
| | DRILLING SERVICES - BASE PERIOD | HEESONG GEOTEK CO., LTD. | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B519SPECIAL STUDIES/ANALYSIS- GEOTECHNICAL | Jan 11, 2024 | Jan 15, 2024 | Jan 14, 2026 |
| | GEOTECHNICAL DRILLING AND SAMPLING | HEESONG GEOTEK CO., LTD. | $24,957 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Jul 13, 2020 | Jul 13, 2020 | Jan 12, 2021 |
| | GEOTECHNICAL DRILLING AND SAMPLING REVOLVING | HEESONG GEOTEK CO., LTD. | $39,613 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Mar 10, 2020 | Mar 10, 2020 | Sep 9, 2020 |
| | GEOTECHNICAL DRILLING AND SAMPLING (8TH T.O) REVOLVING FUNDS | HEESONG GEOTEK CO., LTD. | $188,443 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Feb 12, 2020 | Feb 12, 2020 | Aug 1, 2020 |
| | GEOTECHNICAL DRILLING AND SAMPLING 7TH TASK ORDER | HEESONG GEOTEK CO., LTD. | $102,899 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Aug 22, 2019 | Aug 23, 2019 | Feb 14, 2020 |
| | GEOTECHNICAL DRILLING AND SAMPLING - 6TH TASK ORDER | HEESONG GEOTEK CO., LTD. | $140,947 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Mar 26, 2019 | Mar 26, 2019 | Sep 21, 2019 |
| | GEOTECHNICAL DRILLING AND SAMPLING FOR OSAN AIR BASE AND COMMAND POST TANGO. | HEESONG GEOTEK CO., LTD. | $88,981 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | B599SPECIAL STUDIES/ANALYSIS- OTHER | Dec 10, 2018 | Dec 10, 2018 | Jun 13, 2019 |
| | DRILLING SERVICES FOR 6 LOCATIONS | HEESONG GEOTEK CO., LTD. | $141,332 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Aug 14, 2018 | Aug 14, 2018 | Feb 14, 2019 |
| | DRILLING SERVICES FOR 3 LOCATIONS (USAG HUMPHREYS, CP WALKER, GIMHAE AB) | HEESONG GEOTEK CO., LTD. | $133,474 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Apr 18, 2018 | Apr 23, 2018 | Oct 17, 2018 |
| | IGF::OT::IGF SOFA _ GEOTECHNICAL DRILLING AND SAMPLING AT SALEM TOP, OSAN AIR BASE&USAG HUMPHREYS | HEESONG GEOTEK CO., LTD. | $42,995 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Sep 14, 2017 | Sep 14, 2017 | Mar 13, 2018 |
| | IGF::OT::IGF SOFA GEOTECHNICAL DRILLING AND SAMPLING | HEESONG GEOTEK CO., LTD. | $27,990 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 213115Support Activities for Nonmetallic Minerals (except Fuels) Mining | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Jun 2, 2017 | Jun 2, 2017 | Nov 29, 2017 |
| | IGF::OT::IGF DRILLING AND SAMPLING | HEESONG GEOTEK CO., LTD. | $166,367 | DEPT OF THE ARMY | US ARMY CORPS OF ENGINEERS - CIVIL PROGRAM FINANCING ONLY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Apr 18, 2016 | Apr 15, 2016 | Oct 12, 2016 |
| | IGF::OT::IGF DRILLING AND SAMPLING | HEESONG GEOTEK CO., LTD. | $87,401 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Dec 1, 2015 | Dec 1, 2015 | May 1, 2016 |
| | IGF::OT::IGF DRILLING AND SAMPLING, ZONE I | HEESONG GEOTEK CO., LTD. | $61,840 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Mar 20, 2015 | Mar 23, 2015 | Aug 31, 2015 |
| | IGF::OT::IGF DRILLING AND SAMPLING, ZONE I AND ZONE II | HEESONG GEOTEK CO., LTD. | $65,194 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Nov 13, 2014 | Nov 14, 2014 | Mar 12, 2015 |
| | CONTRACT MANPOWER REPORT (CMR) | HEESONG GEOTEK CO., LTD. | $36,927,643 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Sep 25, 2014 | Sep 25, 2014 | Feb 24, 2015 |
| | IGF::OT::IGF DRILLING AND SAMPLING, ZONE I AND II | HEESONG GEOTEK CO., LTD. | $122,088 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Jun 10, 2014 | Jun 9, 2014 | Nov 8, 2014 |
| | IGF::OT::IGF DRILLING AND SAMPLING, ZONE I | HEESONG GEOTEK CO., LTD. | $90,160,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Apr 1, 2014 | Mar 28, 2014 | Oct 31, 2014 |
| | IGF::OT::IGF DRILLING AND SAMPLING, ZONE II | HEESONG GEOTEK CO., LTD. | $37,844,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 333132Oil and Gas Field Machinery and Equipment Manufacturing | H299EQUIPMENT AND MATERIALS TESTING- MISCELLANEOUS | Feb 24, 2014 | Feb 24, 2014 | Oct 1, 2014 |