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Dateline Resources Limited (ASX:DTR)(OTCQB:DTREF) generates frequent news flow as it advances its gold and critical minerals projects in North America. The company’s announcements focus on drilling results, feasibility study progress, project acquisitions and capital markets milestones related to its flagship Colosseum Gold-REE Project and the Argos Strontium Project, both in California.
Recent news has highlighted wide and high-grade gold intercepts from reverse circulation and diamond drilling at the Colosseum Gold-REE Project in East San Bernardino County. Dateline reports that these results improve the continuity of mineralisation around the North and South pits and in some cases extend beyond the existing mineral resource envelope. Updates also describe Bankable Feasibility Study drilling, including infill, extensional, geotechnical, stockpile and tailings stability programs.
In parallel, Dateline has published news on magneto-telluric modelling that, according to the company, confirms a high-priority rare earth element target on line 2200N at Colosseum. Announcements explain how independent 3D MT inversion models and surface mapping of REE-bearing fenite dykes support the interpretation of carbonatite-hosted REE potential. The company also reports on an accelerated drilling campaign designed to test both gold breccia pipe targets and REE anomalies.
Other news items cover the completion of a $25 million institutional placement to fund work at Colosseum, the acquisition of 100% of the Argos Strontium Project in California, and Dateline’s admission to the S&P/ASX All Ordinaries Index. Governance-related updates include the appointment of experienced North American mining executives as Non-Executive Directors. Investors and observers can use this news stream to follow Dateline’s exploration results, feasibility work, financing activities and strategic developments.
Dateline Resources (OTCQB:DTREF) reported drilling results at its 100%‑owned Colosseum gold and rare earth project, San Bernardino County, California. Multiple RC and diamond holes returned wide, near‑surface gold intercepts, including 295.64m @ 1.04 g/t Au and 300.21m @ 0.66 g/t Au. Intercepts extend beyond the current mineral resource envelope and the felsite breccia pipe remains open to the northeast and at depth. MT conductivity data aligns with new intercepts, supporting targeting. RC holes reached ~300m depth (practical RC limit); diamond core drilling will test deeper continuity.
Dateline Resources (OTCQB:DTREF) appointed George Brack and Phillips Baker Jr as Non-Executive Directors effective January 5, 2026, strengthening the company’s North American board presence.
Mr Brack brings over 30 years in mining finance and corporate development, including 16 years on the Wheaton Precious Metals board. Mr Baker served as CEO of Hecla Mining from 2001–2024 (23 years) and received the 2017 William Lawrence Saunders Gold Medal from AIME. The appointments are aligned with Dateline’s plan to advance the Colosseum Gold-REE Project and expand U.S. critical minerals activities, and are intended to support management as the project progresses toward feasibility and development.
Dateline Resources (OTCQB:DTREF) reported further high‑grade reverse circulation drilling results at its 100%‑owned Colosseum gold and REE project in San Bernardino County, California on December 15, 2025. New assays from 12 RC holes below the South and North Pits improve continuity and, in places, exceed the existing mineral resource grade.
Key assay highlights include RC25-002: 62.48m @ 2.52 g/t Au (incl. 10.67m @ 7.27 g/t), RC25-006: 108.20m @ 1.18 g/t Au (incl. 13.72m @ 4.48 g/t), and RC25-020: 117.34m @ 1.01 g/t Au. The North Pit remains planned as the first mining area; company commentary says added high‑grade ounces could improve early production.
Dateline Resources (OTCQB:DTREF / ASX:DTR) reported further reverse circulation drilling results at its 100% owned Colosseum Gold‑REE Project in San Bernardino County, California on December 3, 2025. Two holes beneath the North Pit returned intercepts that exceed the current Indicated block grades and are expected to improve nearby mineral resource grades in a new estimate planned for early 2026.
Key intercepts: RC25‑001: 64.0m @ 1.24 g/t Au from 0m (incl. 7.66m @ 3.16 g/t Au from 53.34m). RC25‑004: 132.58m @ 0.95 g/t Au from 3.05m (incl. 3.05m @ 7.09 g/t Au from 112.8m). Drilling paused for Thanksgiving and will resume shortly; a bankable feasibility study continues.
Dateline Resources (OTCQB:DTREF) updated on drilling at its 100%‑owned Colosseum Gold‑REE Project, California, dated October 27, 2025. Three rigs (one diamond, two RC) are active; a sonic rig completed tailings work and was demobilised. The compact BFS infill/extensional program is 67% complete (32 holes, 4,257 m) with an estimated finish of November 7, 2025. Approximately 1 Mt of historical stockpiles grading ~1 g/t Au (~30,000 oz) will be RC drilled to confirm inclusion in the mine plan. Sonic drilling confirmed the TSF foundation is suitable for future dry‑stack lifts. New high‑priority gold Targets 1, 5, 6 and REE Target 2200N are next.
Dateline Resources (OTCQB:DTREF) reported progress at its 100%‑owned Colosseum Gold‑REE Project on October 27, 2025. The BFS drill program of 32 holes for 4,257 m is 67% complete with an estimated finish of 7 Nov 2025. Three rigs are active (1 diamond, 2 RC); a sonic rig completed tailings work and was demobilised.
Stockpile: ~1 Mt historical stockpile at ~1.0 g/t Au (~30,000 oz) will be RC drilled to confirm grade for inclusion in the mine plan. Tailings: sonic drilling confirmed foundation stability suitable for dry‑stack lifts. >1,400 samples are at the lab; follow‑up drilling will test high‑priority gold targets 1,5,6 and REE target 2200N.
Dateline Resources (OTCQB:DTREF) completed an independent 3D geophysical review of the Colosseum project on Oct 20, 2025, ranking six breccia-pipe gold targets to guide drilling.
All six targets show coincident gravity lows and low-resistivity signatures; Target 1 is top-ranked, Target 5 shows a conductive zone to ~900m with resistivity 500 Ω·m, and Target 6 has a 300m×300m "bullseye" with continuity to ~700m. The company plans phased drilling of highest-ranked gold and REE targets to target growth of the 1.1 Moz Colosseum resource.
Dateline Resources (OTCQB:DTREF) announced that a second ModEM 3D magneto-telluric (MT) inversion model has confirmed a high-priority Rare Earth Elements (REE) drill target at its Colosseum Gold-REE Project in California. The independent validation, conducted by Dr. Kate Selway of Vox Geophysics, corroborates the previous RLM-3D model findings from August.
The models identified a resistive anomaly on line 2200N, extending from approximately 1,000m depth to the surface, coinciding with fenite dykes. This geological signature suggests potential carbonatite-hosted REE mineralization. The company plans to commence drill testing of this target, along with several gold targets, in the December quarter 2025.
Dateline Resources (OTCQB:DTREF) has completed the acquisition of a 100% interest in the Argos Strontium Project, securing America's largest known strontium deposit. The strategic acquisition positions Dateline as the sole controller of significant domestic strontium resources in the U.S., which currently relies entirely on imports.
The transaction was completed for 8 million Dateline shares (approximately A$2 million) with a 1.25% NSR to the vendor. The Argos deposit features exceptional purity with up to 95% strontium sulfate content and minimal impurities, making it comparable to world-class deposits. The project's strategic importance is underscored by a $192.5 million Department of War commitment under the Defense Production Act for domestic defense-critical chemicals production.
Located near Dateline's flagship Colosseum Gold and REE mine, Argos will be developed alongside existing operations, leveraging operational synergies and regional expertise.
Dateline Resources (OTCQB:DTREF) has launched a major drilling campaign at its 100%-owned Colosseum Gold-REE Project in California. The company has commenced an extensive 10,000+ metre drilling program that will continue through 2025, combining both reverse circulation (RC) and diamond drilling techniques.
The company is expanding its drilling capacity by contracting Major Drilling to provide a high-powered RC rig, complementing Dateline's existing fleet of three company-owned drill rigs. The program targets the expansion of the current 1.1 Moz gold resource and will explore newly identified gold and rare earth element (REE) targets discovered through magneto-telluric surveys. Additionally, a parallel geotechnical drilling program is underway to support Bankable Feasibility Study (BFS) level engineering studies.