Financial Performance - Q2 2025 revenues were $36.3 million, a 22.8% decrease compared to $47.0 million in Q2 2024 due to stronger market rates in the previous year[5] - Net income for Q2 2025 was $12.8 million, compared to $19.5 million in Q2 2024, but higher than $11.3 million in Q1 2025[5] - EBITDA for Q2 2025 was $17.1 million[5] - For the first half of 2025, net income was $24.1 million, EBITDA was $31.8 million, and operating cash flow generation was $42.0 million[9] Fleet and Operations - Fleet operational utilization was 83.1% in Q2 2025, compared to 80.9% in Q2 2024[9] - Approximately 60% of fleet calendar days were dedicated to time charter activity, while about 37% were dedicated to spot activity[9] - The company's fleet book value increased by 54.4% to over $350 million within a single quarter[9] - The company took delivery of two kamsarmax and five supramax drybulk carriers in Q2 2025, operating a fleet of 19 non-Chinese vessels[9] Liquidity and Valuation - Cash and cash equivalents, including time deposits, were $212.2 million as of June 30, 2025, which is about 80% higher than the current market capitalization of approximately $120 million[9] - Net Asset Value (NAV) was estimated at $13.5 per share as of June 30, 2025, while the current share price was approximately $3.5[9] Market Trends - Drybulk trade volumes have increased by 2% year-over-year since July 2025[27] - Since the start of 2025, 302 bulkers (2.1% of fleet) have been delivered[27] - Orderbook is 9% for panamax/kamsarmax vessels, 6% for handysizes and 11% for supramax/ultramax bulk carriers[27]

Financial Performance - Revenues for Q1 2025 were $32.1 million, a 22.1% decrease compared to $41.2 million in Q1 2024 due to stronger market rates in the previous year[8] - Net income for Q1 25' was $11.3 million, compared to $16.7 million in Q1 24', also attributed to higher revenue generation in the stronger market of Q1 24'[8] - EBITDA for Q1 25' was $14.7 million[8] - Cash and cash equivalents, including time deposits, totaled $227.4 million, approximately 170% higher than the company's current market capitalization[8] - Income from time deposits was $2.2 million for Q1 25'[36] Fleet Operations and Expansion - Fleet operational utilization was 84.2% for Q1 25', compared to 86% in Q4 24' and 80.6% in Q1 24'[8] - Approximately 47% of Q1 25' fleet calendar days were dedicated to time charter activity, while 53% were dedicated to spot activity[8] - The company took delivery of the drybulk carrier Supra Pasha (2012 built) on April 26th, 2025, with the remaining six drybulk carriers expected to be delivered by June 25'[8] - The company is adding seven drybulk carriers, increasing fleet size by 60% in both vessel number and deadweight tonnage (dwt) capacity[21] Market Dynamics - Tanker rates in Q1 25' were stronger than in the second half of 2024, influenced by OFAC sanctions imposed in March 2025[13] - A one-year time charter (TC) rate for a Kamsarmax vessel in March 2025 was estimated at around $14,100 per day, while spot day rates for Supramax vessels were close to $10,000[24] - Total capital commitment for the drybulk vessel acquisitions is $129 million, to be paid within Q3 25'[27]

Table of Contents As filed with the U.S. Securities and Exchange Commission on February 23, 2024 Registration No. 333-276868 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Amendment No. 1 To Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 C3is Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Republic of the Marshall Islands 4412 N/A (Primary Standard Industrial Classification Code Number) 331 Ki ...

Table of Contents As filed with the U.S. Securities and Exchange Commission on February 5, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 C3is Inc. (Exact name of registrant as specified in its charter) Republic of the Marshall Islands 4412 N/A (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) 331 Kifissias Avenue Erithrea 14 ...

Table of Contents As filed with the U.S. Securities and Exchange Commission on January 8, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 C3is Inc. (Exact name of registrant as specified in its charter) Republic of the Marshall Islands 4412 N/A (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) 331 Kifissias Avenue Erithrea 145 ...

Table of Contents As filed with the U.S. Securities and Exchange Commission on June 6, 2023 Registration No. 333-271228 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 AMENDMENT NO. 2 TO Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 C3is Inc. (Exact name of registrant as specified in its charter) Republic of the Marshall Islands 4412 N/A (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) 331 Kifissi ...