MIC REPORTS FIRST QUARTER 2022 FINANCIAL AND OPERATIONAL RESULTS

NEW YORK, May 3, 2022

"Our financial results in the first quarter of 2022 reflect positive trends in the number of visitors to Hawaii which contributed to an increase in the volume of gas sold by Hawaii Gas," said Christopher Frost, chief executive officer of MIC.

In June 2021, the Company entered into a merger agreement with an entity managed by Argo Infrastructure Partners, LP.

"We have received all the approvals other than that from the Hawaii Public Utilities Commission relating to completing the proposed merger. We continue to expect to receive the remaining approval and to conclude the transaction in the first half of 2022," Frost added. "If the merger is concluded on or prior to July 1, 2022, unitholders will receive consideration of $3.83 per unit in cash. If the merger is concluded after July 1, 2022, unitholders will receive $4.11 per unit in cash."

Financial and Operational Results

MIC's results from continuing operations in the first quarter of 2022 reflect improved operating conditions driven by the increase in the number of visitors to Hawaii relative to COVID-induced lows in 2020. The number of visitors to Hawaii in the first quarter increased to approximately 79% of pre-pandemic levels. The increase drove hotel occupancy and restaurant patronage higher and consequently gas sales by Hawaii Gas.

The volume of gas sold by Hawaii Gas in the first quarter increased 11% versus the first quarter in 2021 (the "prior corresponding period") but was 13% below the level recorded in the first quarter of 2019 prior to the pandemic. The financial impact of the increase in gas sales was partially offset by a higher average wholesale cost of Liquified Petroleum Gas distributed by the business.