Financial Data and Key Metrics Changes - For the first nine months of 2025, the company achieved a net income of EUR 5.26 million compared to a net loss of EUR 3 million for the same period in 2024, an increase of 281% [3] - EBITDA for the same period was reported at $10 million, up from $3 million in 2024, reflecting a 245% increase [4] - Voyage revenues decreased by 24% to $24.2 million compared to $32.9 million in 2024, primarily due to the dry docking of the Haframx II tanker [14] Business Line Data and Key Metrics Changes - The time charter equivalent rates of vessels dropped by 40% compared to the same period in 2024 [3] - Voyage costs for the first nine months of 2025 were $9.4 million, down from $10.4 million in 2024, attributed to fewer voyage days due to dry docking [15] Market Data and Key Metrics Changes - The dry bulk trade showed resilience, with strong iron ore volumes to China and a moderate rebound expected in coal trade for 2026 [4][5] - The grain trade boomed in Q3, driven by high volumes of Brazilian soybeans purchased by China, resulting in a 35% decline in US exports by the end of Q3 [5] Company Strategy and Development Direction - The company aims for disciplined growth with a focus on acquiring quality non-Chinese-built vessels and maintaining a high-quality fleet to reduce operating costs and improve safety [20][21] - The strategy includes chartering to high-quality clients such as commodity traders and oil producers, with a focus on short to medium-term charters [21] Management's Comments on Operating Environment and Future Outlook - The management noted that despite geopolitical uncertainties, major economies are still growing, and trade volumes are rising across sectors [23] - The company has built resilient foundations adaptable to changing market dynamics and will continue to explore new growth opportunities [24] Other Important Information - The company reported a cash balance of $6.6 million, a decrease of 48% from $12.6 million at the end of 2024, due to the settlement of the purchase price for the EcoSpeedFire [19] - A warrant liability of EUR 3.9 million was recorded, a drop of 63% from the year-end balance of 2024 [20] Q&A Session Summary - No specific questions or answers were provided in the content regarding the Q&A session.

Financial Data and Key Metrics Changes - For the first nine months of 2025, the company achieved a net income of EUR 5.26 million, a significant increase of 281% compared to a net loss of EUR 3 million for the same period in 2024 [3] - EBITDA for the same period was reported at $10 million, up 245% from $3 million in 2024 [4] - Voyage revenues decreased by 24% to $24.2 million compared to $32.9 million in 2024, primarily due to the dry docking of the Haframx II tanker [14] Business Line Data and Key Metrics Changes - The time charter equivalent rates for vessels dropped by 40% compared to the same period in 2024, impacting overall voyage revenues [3][14] - Voyage costs decreased to $9.4 million from $10.4 million in 2024, attributed to fewer voyage days due to the dry docking of the Haframx II tanker [14][15] Market Data and Key Metrics Changes - The dry bulk trade showed resilience, with strong iron ore volumes to China and a potential rebound in coal trade expected in 2026 [4][5] - The grain trade experienced a boom in Q3, driven by increased Brazilian soybean purchases by China, resulting in a 35% decline in US exports by the end of Q3 [5] Company Strategy and Development Direction - The company aims for disciplined growth through selective acquisitions of quality non-Chinese-built vessels, focusing on short to medium-term charters and spot voyages [18][19] - The strategy includes maintaining a high-quality fleet to reduce operating costs and improve safety, which provides a competitive advantage [18] Management's Comments on Operating Environment and Future Outlook - The management noted that the shipping market remains uncertain due to geopolitical factors, but major economies continue to grow, and trade volumes are rising [20][21] - The company has built resilient foundations adaptable to changing market dynamics and plans to enhance its core businesses while exploring new growth opportunities [21] Other Important Information - The company reported a cash balance of $6.6 million, down 48% from $12.6 million at the end of 2024, primarily due to the settlement of the EcoSpeedFire purchase [17] - A warrant liability of EUR 3.9 million was recorded, a decrease of 63% from the previous year [18] Q&A Session Summary - No specific questions or answers were documented in the provided content, thus this section is not applicable.

Q3 & 9M 2025 Financial & Operating Results November 18, 2025 C3is Inc. 1 This presentation contains forward-looking statements within the meaning of applicable federal securities laws. Such statements are based upon current expectations that involve risks and uncertainties. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. For example, words such as "may," "will," "should," "estimates," "intends," and similar expressions are intended t ...

Core Viewpoint - C3is Inc. reported a decline in revenues and operational performance for the third quarter of 2025 compared to the same period in 2024, primarily due to the dry-docking of its Aframax tanker and a decrease in Time Charter Equivalent (TCE) rates. However, the company remains financially stable with no debt and a focus on enhancing its core business and exploring new growth opportunities [11][5][9]. Operational and Financial Highlights - The company achieved revenues of $4.8 million for Q3 2025, down from $9.3 million in Q3 2024, with a daily TCE of $8,733, a 33% decrease from $13,084 in the previous year [5][31]. - Fleet operational utilization was 67.7% in Q3 2025, significantly lower than 90.2% in Q3 2024, mainly due to the Aframax tanker being idle during dry-docking [5][21]. - Net income for Q3 2025 was $2.7 million, with an EBITDA of $4.2 million, while for the nine months ended September 30, 2025, net income was $5.3 million and EBITDA was $10.3 million, reflecting increases of 281% and 245% respectively compared to the same period in 2024 [11][9][28]. Fleet and Vessels - C3is Inc. owns four vessels, including three Handysize dry bulk carriers and one Aframax oil tanker, with a total fleet capacity of 213,464 deadweight tons [16]. - The company completed the dry-docking of its Aframax tanker, Afrapearl II, in August 2025, which took 24 days and cost $1.7 million [5][11]. Financial Position - As of September 30, 2025, the company had cash and cash equivalents of $6.6 million and met all capital expenditure commitments totaling $59.2 million without resorting to bank loans [5][11]. - The company recorded a non-cash adjustment of $6.7 million as "Gain on Warrants" for Q3 2025, reflecting changes in the fair value of warrants [5][11]. Market Context - The shipping market remains volatile due to geopolitical conditions, but major economies continue to grow, leading to rising trade volumes [11]. - The company aims to maintain a debt-free balance sheet while enhancing its operational capabilities and exploring new business opportunities [11].

Core Viewpoint - C3is Inc. is set to release its third quarter financial results on November 18, 2025, before the market opens in New York, followed by a conference call to discuss the results and company outlook [1]. Company Overview - C3is Inc. is a ship-owning company that provides seaborne transportation services to dry bulk and tanker charterers, serving major national and private industrial users, commodity producers, and traders [3]. - As of the end of Q3 2025, the company owns three Handysize dry bulk carriers and one Aframax oil tanker, with a total capacity of 213,464 deadweight tons (dwt) [3]. - The company's shares are listed on the Nasdaq Capital Market under the symbol "CISS" [3]. Conference Call Details - The conference call will take place on November 18, 2025, at 10:00 am ET, where management will present the financial results and discuss operations and outlook [1]. - A live and archived webcast of the conference call will be available on the C3is Inc. website, with participants advised to register approximately 10 minutes prior to the start [2].

Table of Contents As filed with the Securities and Exchange Commission on November 3, 2025. Registration No. 333-290011 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Puglisi & Associates 850 Library Avenue, Suite 204 Newark, Delaware 19711 (302) 738-6680 (Name, address and telephone number of agent for service) 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) Republic of the Marshall I ...

Core Points - C3is Inc. has completed a registered direct offering of 800,000 shares of Common Stock at a price of $2.50 per share, raising approximately $2.0 million in gross proceeds [1][2][3] - The net proceeds from the offering will be utilized for general corporate purposes and working capital [2] - Aegis Capital Corp. served as the exclusive placement agent for the offering, with legal counsel provided by Goodwin Procter LLP and Kaufman & Canoles, P.C. [3] Company Overview - C3is Inc. is a ship-owning company that provides dry bulk and crude oil seaborne transportation services [5] - The company owns four vessels, including three handysize drybulk carriers with a total capacity of 97,664 deadweight tons (dwt) and an Aframax oil tanker with a capacity of approximately 115,800 dwt, resulting in a total fleet capacity of 213,464 dwt [5] - C3is Inc.'s shares are listed on the Nasdaq Capital Market under the symbol "CISS" [5]

Core Points - C3is Inc. has entered into definitive agreements for a registered direct offering of 800,000 shares of Common Stock at a price of $2.50 per share, totaling approximately $2.0 million [1][2] - The transaction is expected to close around October 9, 2025, pending customary closing conditions [2] - The net proceeds will be used for general corporate purposes and working capital [2] Company Overview - C3is Inc. is a ship-owning company that provides dry bulk and crude oil seaborne transportation services [6] - The company owns four vessels, including three handysize dry bulk carriers with a total capacity of 97,664 deadweight tons (dwt) and one Aframax oil tanker with a capacity of approximately 115,800 dwt, resulting in a total fleet capacity of 213,464 dwt [6] - C3is Inc.'s shares are listed on the Nasdaq Capital Market under the symbol "CISS" [6] Offering Details - Aegis Capital Corp. is acting as the exclusive placement agent for the offering [3] - The offering is made pursuant to an effective shelf registration statement previously filed with the U.S. Securities and Exchange Commission (SEC) [3] - A final prospectus supplement and accompanying prospectus will be filed with the SEC, providing more details about the offering [3][4]

Table of Contents As filed with the Securities and Exchange Commission on September 3, 2025. 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 Kifissia 14561 ...

Financial Performance - For the second quarter of 2025, the company reported a net loss of $5.3 million, primarily attributed to a noncash item, specifically an unrealized loss on the fair value of warrants amounting to $6.4 million [4]. Strategic Outlook - The company plans to discuss its strategy and the overall market conditions during the earnings call, indicating a focus on future performance and expectations [3].