Exhibit 99.1 For more information: Joe Zanco, President and CEO (337) 948-3033 For Immediate Release Release Date: April 24, 2025 Catalyst Bancorp, Inc. Announces 2025 First Quarter Results Opelousas, Louisiana – Catalyst Bancorp, Inc. (Nasdaq: "CLST") (the "Company"), the parent company for Catalyst Bank (the "Bank") (www.catalystbank.com), reported net income of $586,000 for the first quarter of 2025, compared to net income of $626,000 for the fourth quarter of 2024. "Loan growth was muted to start the ye ...

Loan Portfolio - As of December 31, 2024, Catalyst Bancorp's loan portfolio totaled $167.1 million, representing 60.4% of total assets[24] - Single-family residential mortgage loans accounted for $81.1 million, or 48.5% of the total loan portfolio, with an average outstanding balance of $71,000 per loan[30] - Commercial real estate and multi-family residential loans totaled $24.7 million, or 14.7% of the total loan portfolio[36] - The commercial real estate loan portfolio was $22.1 million, or 13.2% of the total loan portfolio, with an average loan size of $243,000[37] - As of December 31, 2024, the outstanding balance of construction and land loans totaled $32.9 million, representing 19.7% of total loans outstanding, more than doubling since December 31, 2023[42] - Commercial and industrial loans totaled $26.4 million, or 15.8% of the total loan portfolio, at December 31, 2024, with net charge-offs of $128,000 during the year, primarily from unsecured loans[47][48] - The company’s consumer loans amounted to $1.9 million, or 1.3% of the total loan portfolio, with net charge-offs of $35,000 in 2024, up from $22,000 in 2023[50][51] - The outstanding balance of non-residential commercial construction loans was $27.3 million as of December 31, 2024, with all loans performing in accordance with their terms[43] - Single-family residential construction loans totaled $3.1 million, with the largest loan in this segment being $2.2 million[45] - Loans classified as "substandard" totaled $2.8 million at December 31, 2024, down from $3.3 million in 2023, while "special mention" loans increased to $478,000 from $212,000[59] Financial Performance - The company reported a net loss of $3.1 million for 2024, compared to net income of $526,000 for 2023[176] - Net interest income increased by $1.8 million, or 23.9%, to $9.5 million, with net interest margin rising 59 basis points to 3.65%[176] - Total interest income for the year ended December 31, 2024, was $13.9 million, an increase from $9.7 million in 2023[195] - Total non-interest income for 2024 was a loss of $3.8 million, compared to a gain of $1.6 million in 2023[195] - The efficiency ratio increased to 160.51% in 2024 from 92.29% in 2023, indicating a decline in operational efficiency[195] - Non-accrual loans as a percent of total loans outstanding decreased to 0.94% in 2024 from 1.36% in 2023[196] Asset Management - Total assets increased to $276.7 million at December 31, 2024, up $5.8 million or 2.1% from the previous year[176] - The investment securities portfolio amounted to $42.2 million, representing 15.2% of total assets as of December 31, 2024[70] - Total investment securities decreased by $41.8 million, or 49.8%, to $42.2 million as of December 31, 2024, compared to $84.0 million in 2023[212] - The largest component of the investment securities portfolio was pass-through mortgage-backed securities totaling $27.2 million[70] - The company sold 50 available-for-sale investment securities during 2024, resulting in a total loss of $5.5 million[70] Capital and Regulatory Compliance - Catalyst Bank's capital exceeded all applicable regulatory requirements as of December 31, 2024[97] - Catalyst Bank is considered "well capitalized" as of December 31, 2024, meeting the criteria with a total risk-based capital ratio of 10.0% or greater, a Tier 1 risk-based capital ratio of 8.0% or greater, and a common equity Tier 1 ratio of 6.5% or greater[116] - Catalyst Bancorp is subject to the FRB's capital adequacy guidelines, with a threshold for the "small bank holding company" exception increased to $3.0 billion, meaning it is not subject to capital requirements until consolidated assets exceed this amount[136] - The company requires a minimum debt service coverage ratio of 125% for commercial and industrial loans[47] - Catalyst Bank is in compliance with the loans-to-one borrower limitations, which restrict loans to a single borrower to 15% of unimpaired capital and surplus[102] Strategic Initiatives - Catalyst Bancorp's strategy has shifted to focus on attracting small- to mid-sized businesses and increasing holdings of commercial and multi-family residential real estate loans[20] - The company aims to grow its loan portfolio with greater diversification, focusing on commercial lending[179] - A new core processing system was implemented in the first quarter of 2024 to enhance technology tools and online services[179] - Catalyst Bancorp may consider future acquisitions of banking and financial services companies, although no agreements are currently in place[13] - The company plans to expand through potential acquisitions of other financial institutions in its market area[179] Taxation and Legal Compliance - Catalyst Bancorp is subject to federal income taxation in the same manner as other corporations, with specific exceptions noted[145] - The Louisiana Corporation Income Tax for 2024 applies at graduated rates from 3.5% on the first $50,000 of taxable income to 7.5% on income exceeding $150,000, with a flat rate of 5.5% starting in 2025[151] - The Sarbanes-Oxley Act of 2002 aims to improve corporate responsibility and enhance penalties for accounting improprieties at publicly traded companies[142] - The Gramm-Leach-Bliley Act of 1999 allows qualifying bank holding companies to engage in a broader array of financial activities, including insurance underwriting and investment banking[135]

Exhibit 99.1 For more information: Joe Zanco, President and CEO (337) 948-3033 For Immediate Release Release Date: January 23, 2025 Catalyst Bancorp, Inc. Announces 2024 Fourth Quarter Results Opelousas, Louisiana – Catalyst Bancorp, Inc. (Nasdaq: "CLST") (the "Company"), the parent company for Catalyst Bank (the "Bank") (www.catalystbank.com), reported net income of $626,000 for the fourth quarter of 2024, up $179,000, or 40%, compared to net income of $447,000 for the third quarter of 2024. "Our loan grow ...

Table of Contents Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock CLST Nasdaq Capital Market UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-40893 CATAL ...

Financial Performance - Net income for the third quarter of 2024 was $447,000, down $80,000 from $527,000 in the second quarter of 2024[1]. - Net income for Q3 2024 was $447,000, compared to a net income of $151,000 in Q3 2023, indicating a year-over-year increase of 195.4%[28]. - Net interest income for the third quarter of 2024 was $2.5 million, up $84,000, or 3%, compared to the second quarter of 2024[15]. - Net interest income after provision for credit losses was $2,195,000 for Q3 2024, compared to $1,948,000 in Q3 2023, reflecting a 12.7% increase[26]. - Total non-interest income for Q3 2024 was $620,000, up from $306,000 in Q3 2023, marking a significant increase of 102.6%[28]. - Total non-interest expense for Q3 2024 was $2,260,000, slightly higher than $2,081,000 in Q3 2023, representing an increase of 8.6%[28]. Asset and Loan Growth - The loan portfolio grew by a record $12.6 million, or 8%, totaling $165.9 million at September 30, 2024[1][2]. - Loans receivable, net of unearned income, increased to $165.882 million as of September 30, 2024, compared to $153.266 million at June 30, 2024[24]. - Total loans as of September 30, 2024, were $161,410,000, an increase from $134,851,000 in the same period last year, reflecting a growth of 19.7%[28]. Deposits and Equity - Total deposits were $167.4 million, down $12.6 million, or 7%, from June 30, 2024[10]. - Total deposits decreased to $167.436 million as of September 30, 2024, from $180.065 million at June 30, 2024[24]. - Shareholders' equity increased to $81.667 million as of September 30, 2024, compared to $81.013 million at June 30, 2024[24]. - Total shareholders' equity increased to $81,307,000 as of September 30, 2024, compared to $80,965,000 at the end of Q2 2024[28]. Interest and Yield - The net interest margin for the third quarter of 2024 was 3.86%, an increase of 14 basis points from the prior quarter[15]. - The average yield on loans receivable was 6.70% for Q3 2024, up from 6.38% in Q2 2024[17]. - Total interest income for Q3 2024 was $3,671,000, an increase of 48.7% compared to $2,469,000 in Q3 2023[26]. - For Q3 2024, total interest-earning assets amounted to $261.069 million, generating net interest income of $2.532 million with an average yield of 2.94%[17]. Non-Performing Assets and Loan Losses - Non-performing assets (NPAs) decreased to $1.6 million, with a ratio of NPAs to total assets at 0.57%[5]. - Total non-performing loans decreased to $1,438,000, down from $1,600,000 in the previous quarter[31]. - The total non-performing loans to total loans ratio improved to 0.87%, compared to 1.04% in the prior quarter[31]. - The allowance for loan losses was $2.4 million, or 1.46% of total loans, compared to 1.45% in the previous quarter[6]. - The allowance for loan losses increased to $2,414,000 at the end of the period, up from $2,215,000 in the previous quarter[31]. - The provision for loan losses was $330,000 for the quarter, compared to a reversal of $62,000 in the prior quarter[31]. Operational Changes - The company upgraded to a new core processing system in Q1 2024, contributing to a significant rise in data processing expenses in Q3 2024[19]. - Non-interest expense for Q3 2024 totaled $2.3 million, up $192,000 or 9% compared to Q2 2024, driven by a 5% increase in salaries and a 72% rise in data processing expenses[19]. Company Overview - Catalyst Bancorp, Inc. operates six full-service branches in the Acadiana region of Louisiana, focusing on commercial and retail banking products[20].

Financial Position - Total assets increased by $24.4 million, or 9.0%, to $295.3 million at June 30, 2024, from $270.9 million at December 31, 2023[102] - Loans amounted to $153.3 million, or 51.9% of total assets, at June 30, 2024, up $8.3 million or 5.8% from December 31, 2023[96] - Non-performing assets decreased by $347,000, or 16.9%, to $1.7 million at June 30, 2024, from December 31, 2023[96] - Deposits rose by $14.4 million, or 8.7%, to $180.1 million at June 30, 2024, compared to December 31, 2023[96] - Investment securities decreased by $40.8 million, or 48.6%, to $43.2 million at June 30, 2024, from December 31, 2023[96] - Borrowings increased by $10.9 million, or 56.2%, to $30.3 million at June 30, 2024, compared to December 31, 2023[96] - Shareholders' equity decreased by $3.5 million, or 4.2%, to $81.0 million, representing 27.4% of total assets as of June 30, 2024[118] - Total uninsured deposits rose to approximately $52.7 million at June 30, 2024, up from $44.6 million at December 31, 2023[117] Income and Expenses - Net interest income for the three months ended June 30, 2024, was $2.4 million, up $574,000, or 30.6%, compared to the same period in 2023[96] - Non-interest expense for the three months ended June 30, 2024, was $2.1 million, down $123,000, or 5.6%, compared to the same period in 2023[96] - The company reported a net income of $527,000 for the three months ended June 30, 2024, but a net loss of $4.2 million for the six months ended June 30, 2024[96] - Total interest income rose by $1.2 million, or 51.8%, to $3.5 million for the three months ended June 30, 2024[128] - Total interest expense increased by $629,000, or 140.4%, to $1.1 million for the three months ended June 30, 2024[130] - Non-interest income totaled $366,000, up $49,000 or 15.5% compared to the same period in 2023[132] - Non-interest income for the six months ended June 30, 2024, was down $5.4 million compared to $611,000 for the same period in 2023[138] - Non-interest expense totaled $4.9 million for the six months ended June 30, 2024, up $483,000, or 11.0%, compared to the same period in 2023[138] Loan Performance - The allowance for loan losses was $2.2 million, or 1.45% of total loans, a slight decrease from 1.47% at December 31, 2023[105] - Total non-performing loans decreased to $1,600,000 from $1,991,000 at December 31, 2023[109] - The total provision for credit losses on loans was $194,000 for the six months ended June 30, 2024, compared to no provision for the same period in 2023[137] - The provision for credit losses was $99,000 for the three months ended June 30, 2024, compared to no provision in the same period of 2023[131] Revenue Growth - Total commercial real estate revenue increased by $1,593,000, or 7.4%, to $23,071,000 compared to $21,478,000 in December 2023[104] - Multi-family residential revenue surged by $4,282,000, or 304.6%, reaching $5,688,000, up from $1,406,000 in December 2023[104] - Total construction and land revenue rose by $6,570,000, or 47.4%, totaling $20,427,000 compared to $13,857,000 in December 2023[104] - Oilfield services revenue increased by $4,128,000, or 66.0%, to $10,382,000 from $6,254,000 in December 2023[104] Interest Rates and Yields - The average rate paid on interest-bearing deposits was 2.16% during the three months ended June 30, 2024, up 103 basis points compared to the same period in 2023[130] - The average rate paid on interest-bearing deposits was 2.14% during the six months ended June 30, 2024, up 121 basis points compared to the same period in 2023[136] - The average loan yield was 6.38% for the three months ended June 30, 2024, up from 5.09% for the same period in 2023[128] - The weighted average yield on mortgage-backed securities was 4.48% for the period[113] Liquidity and Capital Management - Total unused and available liquidity was $59.3 million as of June 30, 2024[144] - The company expects to retain the majority of maturing certificates of deposit, but may utilize borrowings or raise interest rates if a substantial portion is not retained[147]

Financial Performance - Catalyst Bancorp reported net income of $527,000 for Q2 2024, a significant recovery from a net loss of $4.7 million in Q1 2024[2]. - For Q2 2024, net interest income was $2.4 million, an increase of $355,000 or 17% compared to Q1 2024[39]. - Non-interest income for Q2 2024 totaled $366,000, up $5.5 million from Q1 2024, which included a $5.5 million loss on the sale of investment securities[28]. - Net income for the three months ended June 30, 2024, was $527,000, a turnaround from a loss of $4,689,000 in the previous quarter[47]. - Return on average assets improved to 0.74% for the three months ended June 30, 2024, compared to a negative return of (6.58)% in the previous quarter[47]. - Return on average equity was 2.62% for the three months ended June 30, 2024, compared to (22.81)% in the previous quarter, indicating a positive trend[47]. Loan and Deposit Growth - Total loans increased by $9.8 million, or 7%, to $153.3 million as of June 30, 2024, compared to March 31, 2024[16]. - Total deposits reached $180.1 million, an increase of $10.4 million, or 6%, from March 31, 2024[6]. - Commercial and industrial loans surged by $8.2 million, or 52%, to $23.9 million compared to the previous quarter[3]. - Loans receivable, net of unearned income, increased to $153,266,000 as of June 30, 2024, from $143,491,000 as of March 31, 2024[32]. - Total loans increased to $150,257,000 for the six months ended June 30, 2024, up from $144,428,000 in the previous period[47]. Asset Management - Total assets as of June 30, 2024, were $295,333,000, an increase from $282,049,000 as of March 31, 2024[32]. - Total investment securities amounted to $43.2 million, or 14.6% of total assets, reflecting a $4.2 million increase, or 10.8%, from March 31, 2024[21]. - Total assets slightly decreased to $285,773,000 as of June 30, 2024, from $286,708,000 in the previous quarter[47]. - Catalyst Bancorp, Inc. reported total assets of $295.3 million as of June 30, 2024[50]. Interest Income and Margin - The net interest margin for Q2 2024 was 3.72%, up 60 basis points from the prior quarter[9]. - The average yield on interest-earning assets increased to 5.35%, up 65 basis points from the prior quarter[9]. - Total interest income for the three months ended June 30, 2024, was $3,525,000, an increase of 11.7% from $3,155,000 for the previous quarter[46]. - Total interest income rose by $370,000 or 12%, while total interest expense increased by $15,000 or 1% in Q2 2024 compared to the previous quarter[39]. - The average yield on total interest-earning assets was 5.35% for Q2 2024, up from 4.70% in Q1 2024[1]. Non-Performing Assets - Non-performing assets totaled $1.7 million, with a ratio of NPAs to total assets at 0.58% as of June 30, 2024[19]. - Total non-performing loans amounted to $1,600,000, up from $1,482,000 in the previous quarter[49]. - The total non-performing loans to total loans ratio was 1.04% as of June 30, 2024, compared to 1.03% in the previous quarter[49]. - Total non-performing assets were $1,704,000, slightly down from $1,719,000 in the previous quarter[49]. Expenses and Shareholder Equity - Non-interest expense for Q2 2024 was $2.1 million, down $723,000 or 26% from Q1 2024[41]. - Total non-interest expense decreased to $2,068,000 for the three months ended June 30, 2024, down from $2,791,000 in the previous quarter, representing a 25.8% reduction[47]. - Total shareholders' equity was $80,965,000 as of June 30, 2024, down from $82,667,000 in the previous quarter[47]. - The allowance for loan losses was $2.2 million, representing 1.45% of total loans, slightly up from 1.44% in the previous quarter[4].

7 | --- | --- | --- | --- | --- | --- | --- | --- | --- | |--------------------------------------------------------------|-------|----------------|------------------------|-------|------------|-------------------------|-------|--------------| | (Dollars in thousands) \nSecurities available-for-sale | | Amortized Cost | Gross Unrealized Gains | March | 31, 2024 | Gross Unrealized Losses | | Fair Value | | Mortgage-backed securities | $ | 26,676 | $ | 4 | $ | (4,343) | $ | 22,337 | | U.S. Government and agenc ...

For Immediate Release Release Date: May 2, 2024 Catalyst Bancorp, Inc. Announces 2024 First Quarter Results and Approval of New Share Repurchase Plan Opelousas, Louisiana – Catalyst Bancorp, Inc. (Nasdaq: "CLST") (the "Company"), the parent company for Catalyst Bank (the "Bank") (www.catalystbank.com), reported a net loss of $4.7 million for the first quarter of 2024, which includes a $5.5 million loss on the sale of investment securities and $560,000 of data conversion and other expenses associated with th ...

Loan Portfolio - As of December 31, 2023, Catalyst Bancorp's total loan portfolio included $83.6 million in single-family residential mortgage loans, representing 57.7% of the total[24] - Total loans for one- to four-family residential properties amounted to $80,795,000 in 2023, a decrease from $83,623,000 in 2022, reflecting a decline of approximately 3.3%[40] - The commercial real estate loans totaled $21,478,000 in 2023, up from $19,984,000 in 2022, indicating an increase of about 7.5%[40] - As of December 31, 2023, commercial real estate and multi-family residential loans represented 17.1% of the total loan portfolio, amounting to $24,900,000[44] - The largest segment of the Company's loan portfolio consists of one- to four-family residential real estate loans, primarily secured by properties in rural Acadiana[180] - The commercial real estate loan portfolio amounted to $21.5 million, or 14.8% of the total loan portfolio, as of December 31, 2023[117] - Construction and land loans amounted to $13.9 million, or 9.6% of total loans outstanding, more than doubling since December 31, 2022[53] - Commercial and industrial loans totaled $20.0 million, representing 13.8% of the total loan portfolio as of December 31, 2023[58] - Consumer loans reached $2.6 million, accounting for 1.8% of the total loan portfolio as of December 31, 2023[63] - Loans classified as "substandard" totaled $3.3 million as of December 31, 2023, with "special mention" loans at $212,000[72] Financial Performance - Net income available to common shareholders for the year ended December 31, 2023, was $602,000, compared to $180,000 for the year ended December 31, 2022, representing a significant increase of 233.3%[52] - Basic and diluted earnings per common share for the year ended December 31, 2023, were both $0.14, up from $0.04 in the previous year, marking a 250% increase[52] - The total charge-offs for the year 2023 were $6,000, compared to $7,000 in 2022, showing a reduction of approximately 14.3%[41] - The company reported recoveries of $119,000 in 2023, slightly down from $123,000 in 2022, reflecting a decrease of about 3.2%[41] - The provision for credit losses for the year ended December 31, 2023, totaled $128,000, compared to a reversal of $375,000 in 2022[77] Capital and Regulatory Compliance - The Bank's Common Equity Tier 1 Capital ratio was 52.34% as of December 31, 2023, significantly above the required minimum of 6.5%[111] - Catalyst Bank's capital exceeded all applicable regulatory requirements as of December 31, 2023, including a common equity Tier 1 capital ratio of 4.5%[143] - Federal regulations require a capital conservation buffer of 2.5% of common equity Tier 1 capital to risk-weighted assets for capital distributions[145] - The company was in compliance with the loans-to-one borrower limitations as of December 31, 2023[148] Deposits and Borrowings - Total deposits as of December 31, 2023, amounted to $165,622,000, a slight increase from $165,094,000 in 2022[93] - Non-interest-bearing demand deposits decreased to $28,183,000 (17.0%) in 2023 from $33,657,000 (20.4%) in 2022[93] - The estimated amount of total uninsured deposits was $44.6 million at December 31, 2023, compared to $43.4 million in 2022[94] - As of December 31, 2023, the Company had total borrowings of $19.4 million, an increase from $9.2 million in 2022[97] - The Company had $48.5 million in available borrowing capacity with the FHLB as of December 31, 2023, compared to $34.2 million in 2022[100] Asset Management - The total assets of the company as of December 31, 2023, amounted to $84,734,000, down from $88,526,000 in 2022, indicating a decrease of about 4.3%[195] - The company's retained earnings increased to $53,045,000 in 2023 from $52,778,000 in 2022, reflecting a growth of approximately 0.5%[195] - The fair value of loans receivable, net, was reported at $132,742,000 as of December 31, 2023, down from $142,796,000 in 2022, a decrease of approximately 7.1%[192] - The total carrying amount of financial assets as of December 31, 2023 is $131,800,000, with a fair value of $121,208,000[213] Staffing and Operations - The company employs only officers of the Bank and may hire additional staff as business expands[18] - At December 31, 2023, the company had 48 full-time equivalent employees, with plans to assess management and staffing needs for future growth[127][128] Regulatory and Compliance Issues - The company is subject to significant anti-money laundering and anti-terrorism laws, which could impact its business activities[132] - Catalyst Bank received an "outstanding" rating under the Community Reinvestment Act in its latest federal examination[153] - The revised CRA regulations will take effect on January 1, 2026, with new data reporting requirements starting January 1, 2027, although the impact on the Bank has not yet been determined[153]