Headquarters Oeltrans AG, Beeler Family Mittengrabenstrasse 49 3800 Interlaken Phone: +41 33 828 68 68 Your specialist for purchasing heating oil, for gas stations, car wash facilities, dumpsters, disposal, and crane work. Heating Oil The trading of heating and fuel oils is our main business. Since 1970, oeltrans ag has been supplying its customers from Bern to Oberhasli with heating oil, diesel, and gasoline. The environment is very important to us: In addition to extra-light heating oil, we also offer eco-heating oil. This is characterized by an even lower sulfur content. Likewise, for gasoline and diesel, we always offer the best possible qualities available in the market. Thanks to our many years of experience in the industry and a large customer base, we can always deliver heating oil, diesel, and gasoline at very attractive prices. Fast, reliable, and uncomplicated. Gas Stations Our 17 gas stations from the Thun area to Interlaken in Oberhasli and from the Brünig pass to Giswil in the beautiful canton of Obwalden! One card for all stations. Do you need a clear monthly invoice, maybe even several fuel cards? We are happy to advise you to make refueling as easy as possible for you... In Interlaken, Thun, and Meiringen, our shops are available for your shopping needs, and at various locations, you can also wash your vehicles. The large Washcenter in Uetendorf offers cleaning facilities for cars, trucks, and buses, and of course, there are also vacuum cleaner stations. AdBlue for modern car and truck diesel engines? Of course, also available at our gas stations in Uetendorf, Thun, and Interlaken. If you need further information or have any questions about the applications, we are happy to assist you. We look forward to being of service to you! - See you soon. Oeltrans AG, Beeler Family, and Staff

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Sinatech is your specialized partner for the safety and monitoring of electrical installations in the Interlaken region and beyond. As an experienced service provider acting on behalf of network operators, Sinatech takes on key responsibilities related to electrical inspections, safety certifications, and compliance with legal requirements under the NIV and ESTI regulations. Our goal: maximum operational safety, clear processes, and complete legal security for operators of electrical systems. Comprehensive Safety and Network Monitoring Electrical installations in Switzerland are subject to strict legal requirements. Sinatech supports network operators with a comprehensive “all-in-one” package that covers all relevant tasks related to the monitoring and coordination of electrical systems. We handle essential duties such as monitoring safety certificates, coordinating with the Inspectorate (ESTI), and conducting random inspections – including notifications and documentation obligations in accordance with NIV. All schedules and implementations are individually coordinated with the responsible manager, ensuring that every process is executed efficiently, transparently, and on time. Our Services as a Network Operator Partner Sinatech undertakes comprehensive responsibilities on behalf of network operators to ensure the safety and oversight of electrical installations. Our services are practical, structured, and fully aligned with legal requirements. Electrical Inspections and SINA Safety Certification Within the field of electrical inspections and SINA safety certification, we offer a wide range of services: • Monitoring the receipt of safety certificates for electrical installations • Reviewing, preparing, and filing relevant documents for network supervision • Analyzing existing documentation and clarifying open issues with ESTI, clients, or contractors as needed • Conducting random inspections of installers and control bodies • Maintaining the electrical safety concept according to ESTI/NIV standards • Monitoring annual transformer maintenance according to contract • Annual short electrical training courses for operational electricians (Model 5+5) • Technical support during electrical work • Assistance with infrared and equipment testing • Overseeing the execution of periodic inspections • Reporting to the Inspectorate upon completion or modification of energy generation facilities • Random verification of safety certificates and initiating corrective actions when necessary • Retaining safety certificates until the next periodic inspection • Reporting serious violations to the Inspectorate by holders of installation or inspection permits or in cases of work performed without authorization Legal Compliance and Operational Safety With our technical expertise and years of experience, Sinatech ensures that all legal requirements are met and operational safety is consistently maintained. The rigorous implementation of the Low-Voltage Installation Ordinance (NIV) and close cooperation with the Inspectorate (ESTI) form the foundation of our work. We adopt a forward-looking approach, identify risks early, and act proactively. Through systematic documentation, structured procedures, and regular inspections, we minimize liability risks and provide transparency for network operators and facility managers. Your Partner for Electrical Safety in Interlaken As a locally established company, Sinatech is intimately familiar with the requirements and structures of energy providers and network operators in Interlaken and the surrounding area. Our clients benefit from short communication channels, personalized support, and efficient execution of all safety-related tasks. When it comes to electrical inspections, safety certificates, network monitoring, and NIV compliance, Sinatech in Interlaken is your reliable partner. Rely on professional coordination, legal certainty, and technical expertise – ensuring the safe and legally compliant operation of your electrical installations.