ISLANDMAGEE ENERGY LIMITED

1. ISLANDMAGEE ENERGY LIMITED 2018-10-25 → present
2. ISLANDMAGEE STORAGE LIMITED 2009-06-23 → 2018-10-25
3. PORTLAND GAS NI LIMITED 2007-01-30 → 2009-06-23
4. SARCON (NO.220) LIMITED 2006-06-15 → 2007-01-30

Latest accounts filed cover 2024-12-31; financial figures currently reflect up to 2023-12-31.

Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers

Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.

Accounting basis

FRS 102 §1A

Reporting scope

Standalone (parent only)

Abridged

Yes — abridged accounts (limited disclosure)

Auditor

PKF Littlejohn LLP

Audit opinion

Unqualified (clean)

Going concern

Affirmed

“The financial statements have been prepared on the going concern basis. In assessing whether the going concern assumption is appropriate the Directors consider all information available for the foreseeable future in particular the 12 months from the date of the sign off of these financial statements. This information includes consideration of management prepared cashflow forecasts and the provider of financial support. RCP, through Geostore, have undertaken to provide financial support to the Companyfor 12 months from the date of approval of the financial statements.”

Significant events

• “In February 2024 there was an appeal hearing to contest the August 2023 High Court decision to uphold the Marine License granted to the Company in 2021. In June 2024 the judge ruled in Favour of the appellant and the marine license were revoked from the Company.”
• “On 19 August 2024 the department of agriculture and environment agency (DAERA), the issuers of the licenses and lead party, took the decision to submit this case to the supreme court to have the full case heard again.”
• “The Company also made the decision to seek permission to the supreme court in order to gain back the full Marine License.”
• “This case was expected to be heard in mid 2025, however the situation changed when in December 2024 the supreme court rejected the case and instead sent it back to the Northern Ireland Assembly in Stormont in Belfast to have the minsters in Northern Ireland make the decision on the case.”
• “On 27 February 2025 it was decided after many discussions that a complete new application should be applied for.”
• “If the Company is unsuccessful in obtaining the new marine license, this would lead to the impairment of the related assets.”
• “The ultimate parent company, Harland & Wolff Group Holdings Plc (now renamed Halo (Group Holdings) Realisations Plc - "Halo") went into administration on 27th September 2024.”
• “In February 2025 and June 2025 the Company received further funding in total of £0.2m and £1m from the administrators of Harland & Wolff Holdings Plc and RCP respectively.”
• “On 16 October 2025 the entire issued share capital in Infrastrata UK Limited has been transferred from Halo (Group Holdings) Realisations PLC (in Administration) to GeoStore Holdings, L.P.”

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

Filings

2

last 12 months

Capital events

0

last 24 months

Officers appointed

0

last 12 months

Officers resigned

0

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

• Turnover

  —

  Not reported

• Cash

  -93.8%

  £4,777 → £296

• Net assets

  -11.7%

  -£2,329,113 → -£2,600,553

• Employees

  -66.7%

  3 → 1

• Operating profit

  +63.7%

  -£706,533 → -£256,245

• Profit before tax

  +61.6%

  -£706,533 → -£271,440

Each % is (latest − prior) ÷ |prior| for the line item as filed. Periods don't have to be exactly 12 months apart — a long or short period (typical around incorporation or year-end changes) will distort the comparison. Lines a company doesn't report are omitted. About these numbers