Information Bulletins
Browse all bulletins published by SITIMM. Stay informed about union news, events and activities.
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Sitimmforma Digital 35-2026
The General Secretary of the SITIMM CTM visited the large SMATA union in Argentina, and the organization participated in the international seminar on union rights and T-MEC. The edition also covers the CTM Educational Network and its educational programs, collective labor negotiation at the Paige Electric plant in Mexico, the processing of the INFONAVIT 2026 credit with only 100 points, permanent union attention, internal management with the company, the legal area and labor procedures, NOTI-IMSS with the activities and news of the week, labor synthesis and digital services.
Sitimmforma Digital 34-2026
SITIMM participated in the 2nd National Meeting of Workers' Sports with State Secretaries of INDET 2026, held at the IMSS La Trinidad Holiday Center, Tlaxcala, where the 2026 National Physical Activation and Sports Program was presented for the 54 National Workers' Sports Games. The edition also covers the democratic consultation in KOLBENSCHMIDT, where the workers approved by personal, free, direct and secret vote the result of the salary review of the collective labor agreement, the continuation of the delivery of school supplies, the consultation of beneficiaries of INFONAVIT Solución Integral, the management of the labor legal area and the labor synthesis of the week.
Sitimmforma Digital 33-2026
From 7 to 13 August 2026 a SITIMM delegation travelled to El Salvador for an exchange with the Electrical Industry Union of El Salvador (SIES), with working sessions on collective bargaining, union training, youth membership and the challenges artificial intelligence poses to organised labour. The issue also covers the democratic elections at the Delfingen plant, the information workshops at Kolbenschmidt and the ongoing delivery of school-supply packages.
Sitimmforma Digital 32-2026
On 5 August, at the seat of the IMSS Technical Council, the national CTM brought together business chambers, company directors and union leaders from Guanajuato with IMSS national director Zoé Robledo Aburto to push for a new regional general hospital in Irapuato, so that health infrastructure grows at the pace of formal employment. The issue also reports the approved collective agreement review at AMPURE, the bilateral women's union exchange between Brazil and Mexico, and the information workshops at ThyssenKrupp Silao.
Sitimmforma Digital 31-2026
On 27 July 2026, at the Legislative Hall, SITIMM and the Congress of the State of Guanajuato opened the second module of the programme “Towards the Development and Leadership of Working Women”, devoted to training in leadership, gender equality, union participation and violence prevention. The issue also reports the start of the 2026 school-supply distribution and the democratic elections at Arbomex Celaya and RPTech.
Sitimmforma Digital 30-2026
SITIMM general secretary Alejandro Rangel Segovia welcomed the IMSS state delegate for Guanajuato, Dr Eusebio Rosales Partida, at SITIMM-CEFORMA Silao to reaffirm joint work for insured workers and their families. The issue also reports the 4th bimonthly SITIMSS meeting at Dauch SMF and the course “Economic and labour outlook 2026 and collective bargaining” delivered to members at Monsanto.
Sitimmforma Digital 29-2026
SITIMM took part in the young trade unionists' seminar convened by IndustriALL Global Union, a training and international networking space for the next generation of leaders. The issue also celebrates the SITIMM advisers who completed their master's degree in labour law, and reports the democratic elections at Bill Forge, Bayer de México and Eissmann Automotive, the approved collective agreement review at Cosmos and Grupo Antolín, and an analysis of how intersectionality is reshaping union work.
Sitimmforma Digital 28-2026
Alejandro Rangel Segovia presented the book “Buscando a Dimas” at the posthumous tribute to Don Dimas Rangel Fernández, where Tereso Medina Ramírez received the Medal of Merit for Friendship. The issue also covers the successful 2nd SITIMM Labour Culture Contest 2026, the young trade unionists' gathering, the meeting with the INFONAVIT state delegate for Guanajuato and the approved collective agreement review at four plants.
Sitimmforma Digital 27-2026
SITIMM highlights that women and young workers make up the majority of its membership, a figure that shapes both the profile of the union and its agenda. The issue also reports the democratic elections at GAT, Hutchinson Amexche, Nidec and SJM Flex, the approved collective agreement review at Delfingen and Promex, and the information workshops on the outcome of the collective agreement review.
Sitimmforma Digital 26-2026
SITIMM took part in the seminar “Organising for collective bargaining in industrial restructuring” and in the regional action plan to implement the international union agenda. The issue also examines the reform granting labour rights to digital platform workers, the approved collective agreement review at Arbomex Celaya, the democratic elections at WWL and the continuing Father's Day gift distribution.
Sitimmforma Digital 25-2026
Through collective bargaining, SITIMM secured a compensatory bonus at Hirotec-Silao for workers affected by a low profit-sharing payout. The issue includes the INFONAVIT basics course, the Father's Day gift distribution, the approved collective agreement review, union training and strategy towards 2026, and the call for entries to the Labour Culture Contest.
Sitimmforma Digital 24-2026
Alejandro Rangel, CTM secretary for liaison and social dialogue and SITIMM general secretary, took part in the IndustriALL Global Union Executive Committee meeting, carrying the agenda of Mexico's metalworkers to the international level. The issue also reports the approved collective agreement review at KTMEX, Flexitech and Mapremex, the democratic elections at Elrad and Eurocast, and the continuing Father's Day gift distribution.
Sitimmforma Digital 23-2026
SITIMM general secretary Alejandro Rangel Segovia represented the CTM at dialogue tables, carrying the voice of the sector's workers. The issue also reports the basic unionism course for newly elected shop-floor representatives at Honda and Arela Manuel Doblado, the start of the Father's Day gift distribution, the union induction sessions, casework before public institutions, and how the World Cup is also lived on the shop floor.
Sitimmforma Digital 22-2026
The SITIMM Executive Committee met to review and approve a series of events for 2026. The issue also reports the approved collective agreement review at Arbomex Apaseo and Ohtli, the democratic elections at Arela Manuel Doblado and Mapremex, the 3rd SITIMSS meeting at Toyota Motor, and the information workshops on the outcome of the collective agreement review.
Sitimmforma Digital 21-2026
SITIMM took part in the Freedom of Association and USMCA forum, a dialogue on strengthening the country's future of work, and in international discussions on the challenges facing organised labour in Latin America. The issue also reports union training and strategy towards 2026, the approved collective agreement review, and the monitoring of fair profit-sharing distribution through the joint labour-management committees.
Sitimmforma Digital 20-2026
With special observers present, workers at Honda de México democratically elected their union delegates in an open, verified process. The issue also reports the approved collective agreement review at three companies, the monitoring of fair profit-sharing distribution through the joint labour-management committees, and the Mother's Day gift distribution.
Sitimmforma Digital 19-2026
Through the joint labour-management committees, SITIMM monitors that workers' share of company profits is distributed fairly, with American Axle & Manufacturing as this issue's featured case. The issue also covers the awards of the children's drawing contest “My mum and dad's work”, the Mother's Day gift distribution, the information workshops on the wage review, the call for entries to the 2nd SITIMM Labour Culture Contest 2026, and the SITIMM-INCTM educational benefits.
Sitimmforma Digital 18-2026
SITIMM and the CTM marked International Workers' Day in an issue that also celebrates SITIMM being awarded the 2026 State Prize for Labour Merit. It reports the union's participation in the Latin America and Caribbean youth conference, the monitoring of fair profit-sharing through the joint labour-management committees, the democratic elections at L&V 5 and Arela Valle de Santiago, and the continuing Mother's Day gift distribution.
Sitimmforma Digital 17-2026
Issue 17 of the SITIMMFORMA Digital weekly. SITIMM delivers the "Joint Labor Committees" course on safety, hygiene and productivity, oversees fair distribution of 2026 PTU profit-sharing, and approves CCT review results at RONGTAI, LTC ROLL and NIDEC. Mother's Day gift distribution begins across multiple sections, informational workshops on wage review continue, and the call for the 2nd SITIMM Cultural and Labor Contest 2026 is announced.
Sitimmforma Digital 16-2026
Issue 16 of the SITIMMFORMA Digital weekly. SITIMM details its position on the fair distribution of 2026 PTU profit-sharing through Joint Committees, approves the CCT review at NEWMAN, KAMAX and CIE CELAYA, and advances the National Crusade for Wage Increases. Includes informational workshops on wage review, the regional IMSS-SITIMM meeting at CEFORMA Villagrán, calls for the 2nd SITIMM Cultural and Labor Contest 2026 and the Children's Drawing Contest, as well as the ongoing distribution of SITIMMFORMA magazine No. 26.
Sitimmforma Digital 15-2026
Issue 15 of the SITIMMFORMA Digital weekly. SITIMM delivers the course-workshop "General Aspects of Workers' Profit-Sharing (PTU) 2026" at CEFORMA venues in Irapuato, Celaya and Silao, led by Martín Hernández Diaz, Francisco Calderón Islas and Alejandro Israel Miranda Guzmán. The CCT review result is approved at VCST through personal, free, direct and secret voting; informational workshops continue and collective agreements are ratified at the CFCRL for ADVICS Manufacturing, Taigene, WRSI, Streir México and Penske. Distribution of SITIMMFORMA magazine No. 26 continues.
Sitimmforma Digital 14-2026
Issue 14 of the SITIMMFORMA Digital weekly. SITIMM advisors and delegates begin the distribution of the 27th edition of the SITIMMFORMA magazine, which contains the Union Executive Committee Report and the Technical Financial Report for the period July-December 2025. Informational workshops on the CCT review continue at American Axle, Yutaka, ThyssenKrupp Árbol de Leva, Yachiyo and GKN Sinter Metal; collective agreements are ratified at the CFCRL for FTS Automotive, G-One, Arbomex Apaseo, Elrad, Tenneco and VCST. The calls for the 2nd SITIMM Cultural and Labor Contest 2026 and the Children's Drawing Contest are announced.
Sitimmforma Digital 13-2026
Issue 13 of the SITIMMFORMA Digital weekly. SITIMM delivers the "Prevention of Addictions in the Workplace" course on March 27 at CEFORMA Irapuato, run by the Municipal Committee Against Addictions of Irapuato, with more than 100 colleagues from over 60 companies; Ma del Rosario Bonilla, Secretary of Finance, presents prevention protocols and integral worker health. The CCT is approved at Forjas de Celaya by democratic vote, informational workshops continue at VCST, ADAC Strattec, ATMX, DeAcero, ThyssenKrupp Amortiguadores and Denso IPP, and the 2nd bimonthly SITIMSS-IMSS meeting is held at Procter & Gamble Milenio.
Sitimmforma Digital 12-2026
Issue 12 of the SITIMMFORMA Digital weekly. The CCT review is approved at BORGWARNER, SAMOT, DEACERO ALAMBRES and DEACERO SUMMIT through democratic vote. SITIMM, represented by Ángel Dimas Ibarra, Secretary of Workers' Sports, attends the First National Workers' Sports Meeting in Mexico City with the delivery of appointments to State INDET Secretaries. SITIMM advisors continue their training with the Master's in Procedural Labor Law at CEFORMA Silao. Informational workshops continue at VCST, ADAC Strattec, ATMX, SAMOT and DeAcero, and the Yo Soy SITIMM app is announced.
Sitimmforma Digital 11-2026
Issue 11 of the SITIMMFORMA Digital weekly. A SITIMM delegation led by Bernardo Rangel Segovia (First Deputy Secretary General) along with José Luis Moreno López, Víctor Rafael Cabrera García and José Luis Rojas Rojas visits the National Federation of Workers of the Rubber, Tire and Latex Goods Industries of Brazil (FENABOR), led by Márcio Ferreira, to exchange union strategies. The CCT review is approved at ARELA SAN FELIPE III, AUMOVIO FIPASI and GAT MÉXICO through democratic vote. Informational workshops continue at ARELA SILAO, BORGWARNER, HANWA, MONROE, SEIREN and UGN; the KOLBENSCHMIDT Sectional Committee holds its Union Assembly at CEFORMA Celaya.
Sitimmforma Digital 10-2026
Issue 10 of the SITIMMFORMA Digital weekly. SITIMM commemorates March 8, International Women's Day, with an event on March 7 at CEFORMA Celaya, with a message from Secretary General Alejandro Rangel Segovia on empowerment. SITIMM groups around 70 thousand affiliates (5% women) and 50% of the Executive Committee are women. CCT review approved at ARELAS Acámbaro, Coroneo, Jerécuaro, Ocampo, San Diego de la Unión and Tarándacuao, plus MONROE and TIGERPOLY through democratic vote. The GRUPO COLLADO Sectional Committee holds its Union Assembly and the CCTs of POLLMAN and HUTCHINSON are ratified at the CFCRL.
SITIMMFORMA Special Edition
March, Month of the Working Woman
Sitimmforma Digital 09-2026
Edition 09-2026 covers the historic election of Mtro. Tereso Medina Ramírez as the new Secretary General of CTM Nacional for the period 2026-2032, with SITIMM's active participation in the XVII National Ordinary Congress. Featured: training courses on the Ley Silla, democratic elections at THYSSENKRUPP Árbol de Levas, wage review consultations at AUMOVIO LAS COLINAS and ARELA MANUEL DOBLADO, and SITIMM's national crusade to raise wages through collective labor negotiations.
Sitimmforma Digital 08-2026
Edition 08-2026 documents SITIMM's progress in the national wage crusade through collective labor negotiations. Featured: the Economic and Labor Perspectives 2026 course-workshop, democratic elections at G-ONE, democratic consultations at ARELA SILAO, HUTCHINSON AMEXHE, and ND AUTOMOTIVE, the continuation of the Master's in Labor Procedural Law for advisors, and Basic Computer courses for union delegates.
Sitimmforma Digital 07-2026
Edition 07-2026 documents the Ordinary Union Council Assembly held on February 13 in Irapuato, where over 700 union representatives from 170 companies approved the activity reports and financial technical report through personal, free, direct, and secret ballot. Highlights include SITIMM's achievements: over 70,000 affiliated workers, 46 collective reviews with increases of up to 20% in seven companies benefiting 28,151 workers. Also included: informational workshops on collective bargaining results, the national wage increase crusade, and permanent union assistance.
Sitimmforma Digital 06-2026
Edition 06-2026 covers the CEFORMA workshop on union representative development and leadership (February 6), the visit of the SIES El Salvador union delegation to SITIMM-Mexico, the IMSS State Delegate's visit to CEFORMA-Silao, the democratic consultation at GTEKT, progress of the national wage-increase crusade through collective bargaining at HUTCHINSON OHTLI, SEIREN, MAGNA and others, informational workshops at ARELA TARÁNDACUAO and MAPREMEX, and permanent union care services.
Sitimmforma Digital 05-2026
Edition 05-2026 of SITIMMFORMA Digital: SITIMM present at the Annual Planning Workshop of the Observatory for Substantive Equality in Unions; visit from the SIES delegation from El Salvador; first bimonthly SITIMSS meeting at GKN Driveline Villagrán; democratic elections at DEACERO ACERÍA and AMPURE; progress of the National Wage Increase Campaign through collective bargaining; informational workshops on contract review results; guidance on INFONAVIT Integral Solution, AFORE, vacations and digital services.
Sitimmforma Digital 04-2026
Issue 04-2026 of SITIMMFORMA Digital. Includes the CEFORMA course on economic perspectives and collective bargaining strategies for 2026, results of Collective Labor Agreement reviews, informational workshops, INFONAVIT Integral Solution consultation, permanent union attention, union inductions, health guide, vacation information, and labor news summary from the automotive sector in Guanajuato.
Sitimmforma Digital 03-2016
With the most relevant activities and news of the week
Sitimmforma Digital 02-2026
Edition 02-2026 of the SITIMMFORMA digital magazine. Includes coverage of training courses on economic and labor perspectives, collective labor negotiations, permanent union assistance, union orientations, digital services, health care guide, frequently asked questions about vacations, and a labor synthesis of the automotive sector.
Sitimmforma Digital 01-2026
Digital edition 01-2026 of SITIMMFORMA. Includes the permanent union assistance process, SITIMM structure and operation, official 2026 work suspension calendar, information on voluntary savings in AFORE, digital procedures catalog, health guide, labor synthesis, and more.
Sitimmforma Digital 50-2025
Edition 50-2025 of SITIMMFORMA Digital brings together the most relevant events of the union week. SITIMM participated in the European Union Forum for Decent Work, promoting the National Crusade for Wage Increases. The second meeting with the Japan Automobile Workers Confederation (JAW) was held in Mexico City, strengthening international solidarity ties. Democratic elections, workshops, collective bargaining and year-end gift distribution for affiliated families are also reported.
Sitimmforma Digital 49-2025
With the most relevant activities and news
Sitimmforma Digital 48-2025
Edition 48-2025 of SITIMMFORMA Digital highlights the 6th Diploma "Toward the Development and Leadership of the SITIMM Working Woman," with over 170 participants from more than 90 workplaces. Democratic elections at FLEX N GATE METALES and YUTAKA are reported, along with informational workshops at ALUMINITRADE, KROMBERG & SCHUBERT, GAT and NEWMAN, and the sixth bimonthly SITIMSS meeting in Villagrán. Also covered: year-end gift delivery, collective bargaining, legal activities, and guides on year-end bonuses and vacation rights.
Sitimmforma Digital 47-2025
With the most relevant activities and news
SITIMMFORMA Digital Special Edition
SITIMM TAKES PART IN THE UNITED NATIONS PROGRAM KNOWN AS THE “DEVELOPMENT AND LABOR JUSTICE INDEX”
Sitimmforma Digital 46-2025
We share SITIMMFORMA Digital 46-2025 with the most relevant union news and activities: 5th anniversary of the CFCRL, training courses for Toyota Motor elected representatives, CCT review in LEADEC, democratic elections in RPTECH, permanent union assistance, union inductions, health guide, vacations and labor news summary.
Sitimmforma Digital 45-2025
We share with you SITIMMFORMA Digital 45-2025, featuring the most relevant union news and activities
Sitimmforma Digital 44-2025
SITIMMFORMA Digital 44-2025 with the most relevant union news and activities of the week
Sitimmforma Digital 43-2025
With the most relevant activities of the week
Sitimmforma Digital 42-2025
With the most relevant activities carried out by your union organization
Sitimmforma Digital 41-2025
Edition 41-2025 of SITIMMFORMA Digital documents the democratic approval of the Collective Labor Agreement review at ORBI LOGISTICS, ISS FACILITY, and WALLSTABE & SCHNEIDER. It presents training courses on Economic Perspectives 2025, informational workshops at MATIC and TTH AUTOMOTIVE, and the continued distribution of SITIMMFORMA magazine No. 26 with the Finance Report. Topics also include permanent union assistance, union orientation, digital institutional services, vacation rights, and workplace mobbing.
Sitimmforma Digital 40_2025
With the most relevant union news and activities
Sitimmforma Digital 39-2025
With the most relevant activities and news
Sitimmforma Digital 38-2025
We share SITIMMFORMA Digital 38-2025 with the most relevant union news and activities
Sitimmforma Digital 37-2025
We share with you SITIMMFORMA Digital 37-2025 with the most relevant union news and activities
SITIMMFORMA Digital Magazine Catalog 2025
You can now download the SITIMMFORMA Digital 2025 magazine catalog, featuring the most relevant union news and activities of our organization. SITIMM, genuine unionism.
Sitimmforma Digital 36-2025
We share with you the SITIMMFORMA Digital 36-2025 with the most relevant news and union activities.
SITIMMFORMA Special Edition 2025
We share with you the SITIMMFORMA Digital Special Edition 2025 with the most relevant union news and activities.
SITIMMFORMA Weekly, August 12–17
With the most relevant activities carried out from August 12 to 17, including courses and training sessions, democratic elections, and the delivery of school supply packages, among others
SITIMMFORMA Weekly, August 5–10
With the most relevant activities carried out from August 5 to 10, including courses and training sessions, democratic elections, delivery of school supply packages, official calls, administrative procedures, and union support, among others
SITIMMFORMA Weekly July 29 to August 3
With the most relevant activities carried out such as: Training and capacity building, Democratic Elections, Worker Consultations, Management, union services, among others
SITIMMFORMA Weekly July 22 to 27
SITIMMFORMA Weekly, with the most relevant activities carried out from July 22 to 27 such as: Training and capacity building, Democratic Elections, Worker Consultations, SITIMSS Meeting, Management, union services, among others.
SITIMMFORMA Weekly July 8 to 13
With the most prominent union activities from July 8 to 13.
Sitimmforma Weekly, July 1–6
With the most relevant activities carried out during the week. It also includes the labor news digest with the highlights from July 1 to 6.
Sitimmforma Weekly, May 27–31
SITIMMFORMA Weekly, with the most relevant activities carried out during the week. It also includes the labor news digest with the highlights from May 27 to 31.
Location and Game Schedule
XXVI SITIMM SPORTS GAMES: Location and game schedule in their different disciplines.
Sitimm Achieves Major Wage Increases
WITH TOYOTA (22% OVERALL) AND HONDA (FROM 10.5 TO 11.5% WAGE), SITIMM ACHIEVES AND CONSOLIDATES MAJOR WAGE INCREASES FOR ITS WORKERS.
New Reform of SITIMM Union Statutes
Reform of SITIMM Union Statutes approved by personal, free, direct and secret vote.
Message from Lic. Alejandro Rangel Segovia, Secretary General of SITIMM
We share the following message addressed to all the workforce on behalf of Lic. Alejandro Rangel Segovia, Secretary General of SITIMM.
Sitimm Stance On the Situation at Gissing de México
SITIMM DEMANDS RESPECT FOR WORKERS' RIGHTS IN THE FACE OF THE DIFFICULT SITUATION AT GISSING DE MÉXICO.
New Fonacot Service Module Sitimm-ceforma Silao
We have opened a new FONACOT service module at our SITIMM-CEFORMA offices in Silao, Gto.
Digital catalogue for main procedures and enquiries
Digital catalogue for main procedures and enquiries at IMSS, INFONAVIT, FONACOT, AFORE and Consar.
SITIMM-IECA Agreement
The signing of the agreement establishes an accord between the parties so that IECA can offer its educational services to workers affiliated with SITIMM.
Meet Conexión
CONEXIÓN, sponsor of our SITIMMFORMA Magazine.
Net Return Indicator (Generational SIEFORES).
Choosing an AFORE is an important decision, as it will impact the growth of your retirement savings.
CECATI teacher recruitment process
TO CONSULT THE TERMS, REQUIREMENTS AND OPEN POSITIONS IN THE STATE OF GUANAJUATO, PLEASE REFER TO THE FOLLOWING DOCUMENT.
SITIMM 2021 Plenary Assembly
On Saturday, September 4, 2021, the SITIMM Union Executive Committee (CES) convened and held the SITIMM 2021 Plenary Assembly.
Discounts at Destroyer shoe stores
Present your SITIMM membership card to receive the discounts we have for you at Destroyer stores.
Video message from Alejandro Rangel Segovia, Secretary General of SITIMM, to GM workers
In view of the resumption of the legitimation process of the CBA at the GM plant in Silao, the Secretary General of SITIMM addresses a message to the workers of this company.
May 1St 2021 Manifesto to Society
SITIMM manifesto in commemoration of International Workers' Day.
Welcome to the "General Bulletins" section of SITIMM
In this new Bulletins section you will find all the positions, announcements and general bulletins of the Union.
