ADX Energy Ltd.: HOCH-1 Production Test Update

Testing Equipment Mobilised in Preparation for Production Testing

Figure 1. Gas prospects program well and ADX prospect inventory in Upper Austria; ADX Energy Ltd.

Wien (pta013/15.06.2026/12:14 UTC+2)

Testing Equipment Mobilised in Preparation for Production Testing

Key points:

• The Hochfeld-1 ("HOCH-1") shallow gas exploration well was drilled, cased and completed on the 15th of May 2026 in preparation for production testing in the ADX-AT-I exploration licence in Upper Austria. HOCH-1 is the first of three (3) shallow gas prospects to be drilled in Upper Austria. Two (2) additional gas prospects are permitted for drilling in 2026 (refer to Figure 1 at the PDF file).
• The HOCH-1 well encountered up to eight (8) gas reservoirs within the Hall formation and the Base Hall formation interpreted from gas shows while drilling and logging results.
• Surface testing equipment has been mobilised to the HOCH-1 well site. Rig up and pressure testing will be undertaken prior to perforation and production testing of the well.
• Testing is planned to be undertaken in two phases. The first phase focussed on the upper Hall formation and the second phase on the lower Base Hall formation. The first phase will include the firm testing of up to three zones and potentially a fourth contingent zone (refer to Figure 2).
• Perforation is planned during the coming week. Sand intervals will be perforated sequentially followed by a brief clean up flow. The perforation sequence and subsequent flow periods will be determined by the inflow performance of each zone.
  
  For more details please see the PDF file.
  

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Emitter:	ADX Energy Ltd. Ölzeltgasse 3/8 1030 Wien Austria
Contact Person:	Vesna Blazevic
Phone:	+43 676 6893465
E-Mail:	office@adx-energy.at
Website:	www.adx-energy.com
ISIN(s):	AU000000ADX9 (Share)
Stock Exchange(s):	Free Market in Frankfurt, Hamburg, Munich, Stuttgart, Tradegate BSX
Other Stock Exchanges:	Australian Securities Exchange (ASX), Sydney