3D Energi Limited（以下简称“本公司”；ASX：TDO）欣然发布以下关于维多利亚州奥特威盆地近海VIC/P79勘探许可证范围内Charlemont-1天然气勘探井钻探作业的最新进展。Charlemont

-1井于2025年12月10日澳大利亚东部标准时间晚上7:15由Transocean Equinox号钻井平台开钻。

作业状态
：正如12月29日星期一报告的那样，Charlemont-1井在Waarre C层（表1和表21）主要目标层（Waarre A）上方约160米处发现了显著的天然气显示。此外，在2552米处，压力高于预期，钻井作业暂时停止，以评估对井筒设计的潜在调整，包括继续钻探至主要目标层的方案。

目前，井筒设计采用了7英寸衬管，以便钻穿目标油藏（Waarre A），该油藏已成功钻探完毕。预计钻井作业将在周末恢复，此前因故延迟了约七天。

随着钻井作业推进至关键作业节点，我们将提供进一步的更新信息。

股权结构：
3D Energi Limited 20%；
ConocoPhillips Australia（作业者）51%；
韩国国家石油公司 29%。

本公告经3D Energi Limited董事会授权发布。

3D Energi Limited (the 锟紺ompany锟�; ASX:TDO) is pleased to provide the following update on drilling operations at the Charlemont-1 gas exploration well within VIC/P79 exploration permit, offshore Otway Basin, Victoria.

The Charlemont-1 well was spud at 7:15pm AEST on 10 December 2025 by the Transocean Equinox.

Operations Status
As reported on Monday 29th December, the Charlemont -1 well intersected significant gas shows approximately 160 meters above the primary target (Waarre A) in the Waarre C (Table 1 and 21 ). Further, at 2,552 meters, pressures were higher than anticipated and drilling was temporarily paused to assess potential adjustments to the well design, including options to continue to drill to the primary target.

The well design now incorporates a 7锟� liner to enable drilling through the target reservoir (Waarre A) which has now been successfully run. Drilling is anticipated to recommence over the weekend following a delay of approximately seven days.

Further updates will be provided as drilling progresses through key operational milestones.

Equity interest
3D Energi Limited 20%
ConocoPhillips Australia (Operator) 51%
Korea National Oil Company 29%

This announcement is authorised for release by the Board of Directors of 3D Energi Limited.