重点
— 红湖气田两口气田生产井继续进行稳定脱水作业
— 达到临界解吸压力，预计本季度内将产出第一批天然气
— 气井正在按照沁水盆地的最佳实践进行降压

翡翠燃气控股有限公司（“翡翠”或“公司”）欣然提供其位于蒙古南戈壁地区红湖气田生产活动的月度运营更新。

运营摘要 — 继续向首次产气迈进
红湖气田的两口气田生产井 RL-Hz-01 和 RL-Hz-02 继续进行泵送作业，自气井投产以来一直保持稳定的脱水作业（参见澳大利亚证券交易所 2025 年 6 月 10 日公告）。脱水过程正在充分降低储层压力，目前压力正按计划进行并符合预期。公司预计本季度将达到临界解吸压力，从而实现早期产气。

谈及进展，Jade 非执行董事 Ian Wang 博士表示：
“公司对前两口水平段天然气生产井的快速进展感到振奋。我们发现，红湖项目的进展与团队此前在中国沁水盆地天然气作业中经历的类似。”

目前，各项活动正按计划推进，预计本季度将产出第一批天然气。这对于蒙古国内天然气工业的发展至关重要。1

. 生产指标：
两口井产出的天然气将通过卡车运往附近的塔本陶勒盖煤矿（由额尔登塔本陶勒盖公司运营），用于其运营。2

. 储层及技术进展
：运营理念：这些井的运营遵循中国沁水盆地（红湖煤田的模拟油田）的水平井最佳实践。目前，井内液位每天降低3-6米，以最大程度地减少煤层快速下降，避免煤层过早坍塌并损坏煤炭。现场生产运营团队正密切监控和管理产量下降率，并可能根据实际表现进行调整。

气体解吸指标：红湖气田的煤层略微欠饱和，预计未来几个月内井底流动压力可能达到临界解吸点。随着气体在建立连续气体流量之前开始解吸，套管内压力将升高。3

. 油井和钻井活动

——现有油井：
a. RL001-3b-Hz-01 于 6 月 9 日开始运营，并在当月剩余时间内保持运营，正常运行时间为 100%。b
. RL001-3b-Hz-02 于 6 月 9 日开始运营，并在当月剩余时间内保持运营，正常运行时间为 100%。

4. 未来展望
——即将开展的活动：预计油井产水量将持续增加，直至达到临界解吸压力，届时预计将产出天然气。生产运营团队将继续监测油井动态，并根据最佳实践以及团队在沁水盆地类似油井生产活动中的经验调整产量下降率。
额外地震数据：为进一步完善未来的钻井作业，公司将评估在目前指定用于早期钻井位置的红湖油田内采集额外二维和三维地震数据的必要性。

由执行董事约瑟夫·伯克 (Joseph Burke) 代表董事会授权发布。

Highlights
• Stable dewatering activities continue across both gas production wells at the Red Lake gas field
• Critical desorption pressure with first gas flows expected to be realised within this quarter
• Wells are being drawn down in line with best-practice operations in Qinshui Basin

Jade Gas Holdings Limited (Jade or the Company) is pleased to provide the monthly operations update on production activities at the Red Lake Gas Field in the South Gobi region of Mongolia.

Operations Summary - Positive Progress Continues Toward First Gas Production
Pumping activities continue across both gas production wells, RL-Hz-01 and RL-Hz-02, at the Red Lake gas field with stable dewatering operations maintained since the wells were brought online (see ASX Announcement 10 June 2025). The dewatering process is sufficiently lowering reservoir pressure, which is tracking to plan and in line with expectations. The Company anticipates that critical desorption pressure will be realised during the quarter to achieve early gas flow.

Commenting on the progress, Jade Non-Executive Director, Dr Ian Wang, said:
“The Company is buoyed by the rate of progress being achieved at our first two lateral gas production wells. We are seeing similar parallels to the development of gas operations the team has experienced previously in the Qinshui Basin in China relative to how our Red Lake operation is progressing.

At this stage, activities continue according to plans which anticipate first gas flows to be achieved this quarter. The importance of this for the development of Mongolia’s domestic gas industry cannot be understated.”

1. Production Metrics
Water produced from both wells is trucked to the nearby Tavan Tolgoi coal mine (operated by Erdenes Tavan Tolgoi) for beneficial use in their operations.

2. Reservoir and Technical Progress
• Operating Philosophy: The wells are being operated in line with best-practice operations for lateral wells in the Qinshui Basin in China, the analogue field for Red Lake. Currently, the fluid level in the wells is being lowered by 3-6 metres per day to minimise rapid drawdown on the coal that can cause premature collapse of the seam and damage the coal. The drawdown rate is being closely monitored and managed by the onsite production operations team and may be adjusted depending on the performance.

• Gas Desorption Indicators: The coals in the Red Lake Field are slightly undersaturated and it is estimated that the flowing bottom hole pressure may reach critical desorption point during the coming months. The pressure in the casing will increase as gas begins to desorb ahead of establishing continuous gas flow rate.

3. Well and Drilling Activities

• Existing Wells:
a. RL001-3b-Hz-01 commenced operations on 9 June and was operational for the remainder of the month, with 100% uptime.
b. RL001-3b-Hz-02 commenced operations on 9 June and was operational for the remainder of the month, with 100% uptime.

4. Forward Outlook
• Upcoming Activities: It is expected that the wells will continue to produce an increasing volume of water until the critical desorption pressure is reached, at which time gas is expected to be produced. The production operations team will continue to monitor well performance and adjust the draw down rate in line with best practice and consistent with the experience of the team in similar well production activities in the Qinshui Basin.
• Additional Seismic: To assist with further refinement of future drilling campaigns, the Company will assess the need for the acquisition of additional 2D and 3D seismic within the Red Lake field currently designated for early well locations.

Authorised for release on behalf of the Board by Joseph Burke, Executive Director.