SELECTRON S.A., a subsidiary of the C&A Group, was founded in 2009 and is headquartered in Piraeus. It manufactures and supplies a wide range of sensors for industrial and marine applications. Its core expertise lies in electrical and electronic equipment and automation, with a strong focus on pressure transmitters. Notably, it was the first manufacturing company in Greece to offer more than 70 equipment codes in this category. The company operates from its privately owned facilities in Piraeus, including modern offices, a large warehouse, and a technologically advanced workshop. With a strong emphasis on customized manufacturing, Selectron S.A. has developed over a decade of experience serving both the maritime and industrial sectors. All products are manufactured in accordance with leading international standards and strict quality assurance procedures.

We, as Seltas Shipyard, are a family owned company, whose history goes back to 19th century. Experts in new building, repair, maintenance and conversion works are able to service your good vessels in our facilities in Tuzla and Yalova. Any kind of machinery ovehaul works, steel and pipe renewal, hydro blasting and sand blasting of the hull and painting, dry docking works up to 85000 DWT vessels, testing of safety equipments, retrofit works can be completed with competitive prices in our esteemed Yard.

We are a commercial company dedicated to marine and industrial automation/ instrumentation. In our portfolio you can find measuring equipment for marine market like flow measurement (electromagnetic flowmeters) for ballast water treatment BWTS, coriolis flowmeters for fuel consumption-bunkering, ozone mass flow controllers, pH-conductivity-turbidity analyzers for scrubber shipping systems, ATEX mobile smartphones/ tablets/ cameras, pressure, level, temperature sensors, valves, motor drives, analyzers, paperless recorders for IGS, services etc. We also offer/ manufacture metering skids - analyzer shelters for oil and gas applications and we can offer recalibration services via our custom portable calibration rig.

Senda delivers comprehensive solutions for marine vessels, offshore oil platforms, and land-based power generation from Shanghai headquarters.

Our 220,000-square-foot Pudong facility integrates warehousing, production, logistics, and diesel engine maintenance, offering maintenance services and spare parts for marine diesel engines (ME & AE), auxiliary systems, offshore systems, and power generation units.

Our 200+ professionals specialize in sales, technical services, and parts production. We partner with engine makers and their licensees, representing multiple internationally renowned brands as their authorized agent in China.

Senda operates service stations in Singapore, Greece, the UAE, and Poland, with local teams ensuring rapid response across Southeast Asia, Europe, and the Mediterranean.

We hold ISO 9001:2015 certification and approvals from multiple classification societies.

SEVEN CHEM & TECH - Advanced Marine Chemical Solutions for a Safer, Cleaner, and More Efficient Maritime World.

With a strong foundation in marine chemistry and technical expertise, we deliver innovative, safe, and cost‑efficient solutions that support vessels throughout their operational lifecycle.

What We Deliver:

✔ IMO‑Approved Cargo & Tank Cleaning Chemicals

✔ Cargo Hold Cleaning & Protective Coatings

✔ Maintenance & General Cleaning Solutions

✔ High‑Performance Fuel Additives

✔ Specialized Equipment for Marine Cleaning

To maximize the effectiveness of our chemicals, we supply robust, marine‑grade equipment such as:

• High‑pressure hydroblasters (160–1000 bar)
• Hot box‑compatible pressure washer systems
• Chemical application & pumping systems
• Safety‑focused PPE and maintenance tools

✔ Expert Supercargo Services Worldwide.