High Grade Results from Diamond Drill at Kabwe

Shuka Minerals Plc (AIM/AltX: SKA), an African focused mine operator and developer, is pleased to announce that, further to the announcement on 14 May 2026, it has successfully completed the first drill hole ("KBDD01") at the No.2 ore body at the Kabwe Zinc Mine ("Kabwe Project").

Highlights:

• Grades of up to 65.7% Zn encountered in hole KBDD01 at the No. 2 Ore Body
• First drill hole exceeds pre-drill expectations and second drill hole now underway
• Average drill hole grade of 18.02% Zn in the main intersection versus existing high-grade resource of 11.4% Zn
• Supports objective of increasing existing NI 43-101 resources by 50%

Drilling

The initial diamond drill hole was planned at 65 degrees at a bearing of 130 degrees and was planned to intersect the ore body below the current workings at a depth of approximately 220-230 metres ("m"). The Company has commenced a deeper hole to intersect the orebody at c.300-320m below surface.

The actual readings from a down hole gyroscope survey revealed the hole was 230.14m deep, with a final azimuth of 132.31 degrees and a dip of 65.2 degrees. That is extremely accurate for a 200m+ hole in a previously mined area.

As previously announced, the Behre Dolbear 2023 NI 43-101 report indicates that the No.2 ore body has 3.1MT of ore remaining at grades of 11.4% zinc and 1.7% lead plus silver and vanadium oxide.

Results

Some zinc mineralisation was noted near surface (5-15m) however the main intersection of the orebody, as anticipated by GeoQuest Limited ("GeoQuest"), was 20.7 metres (from 206.8m to 227.5m) at an average grade of 18.02% zinc, including 7m (from 210.5-217.5m) with values between 25-65% zinc. A maximum value of 65.7% zinc occurred at 213.2m down hole depth.

The GeoQuest geological team are on site with the Company's CEO, Richard Lloyd, who is overseeing the commencement of the initial (2,000 metres) phase of drilling. Drilling is being undertaken by Ox Drilling Limited, a contractor with 21 years established operating experience in Zambia.

The Company will update on further progress as drilling advances.

Shuka Minerals CEO, Richard Lloyd, commented:

"The initial drill hole of any campaign, even in a known mineralised and previously mined area, is nerve wracking. The detailed planning based on previous reports from ZCCM and Anglo-American data allowed GeoQuest and the team to target a very specific zone of the ore body below the old workings. With this planning and the skill of the Ox Drilling operators, we hit the target spot on and the results are well beyond our expectations. I am looking forward to receiving the results from the upcoming drill holes."

Qualified Person

The technical information contained in this disclosure has been read and approved by Richard Lloyd, Chief Executive Officer of the Company, a current Fellow of the Geological Society and a Fellow Institute of Metals, Minerals and Mining and acts as a Qualified Person under the AIM Rules - Note for Mining and Oil & Gas Companies.

The Directors of Shuka are responsible for the contents of this announcement.