AP4 Group – Full-Service Heavy-Duty & Aeroderivative Industrial Gas Turbine Maintenance Provider.


Emerson™ provides control systems for new-build gas and steam turbines and aftermarket retrofits.

Emerson™ and TC&E - A Division of AP4 Group have been partnered since 2018, performing gas and steam turbine control system upgrades in the field.

Don't know what to expect during an upgrade?                                                                                                                                                    Our team of OEM-trained field engineers will remove the existing MKV, MKVI, or MKVIe and replace it with Emerson™'s Ovation Control System. Our team will then perform the startup and commissioning of the new system.

The Emerson™ Ovation Control System is field-proven for all models of GE™ heavy-duty & aeroderivative gas turbines.


We offer reliable solutions for profitability and focus on helping you meet your sustainability objectives. Whether it is OEM parts you need for a planned power outage, or a team of experienced field service engineers, AP4 has your power generation requirements covered

Natural Gas accounts for almost a quarter of the World's energy consumption. Due to the harsh environment these platforms are in, it is imperative to have a responsive partner who is able to meet your needs and ensure your operations runs efficiently

AP+M has been supporting LM2500s in commercial and naval marine applications for 30+ years.  AP+M's complete range of genuine OEM spare parts, component repairs and experienced field service engineers keep the navies, passenger cruise lines and other commercial ships powered by the LM series gas turbines operating around the world


Global Reliability

Electronic materials are the type of materials which are typically used as core elements in a variety of device applications. These elements can be, for example, memories, displays, LEDs and could be easily seen in daily electronic gadgets such as mobile phones, computers, laptops, tablets, GPS devices, LED bulbs, TVs and monitors.

Integrated Solutions

Electrical power has been the technological foundation of industrial societies for many years. Although the systems designed to provide and apply electrical energy have reached a high degree of maturity, unforeseen problems are constantly encountered, necessitating the design of more efficient and reliable systems based on novel technologies.

Quality Controlled Parts

AP+M maintains stringent quality control systems in place. Our certifications include:

  • ISO 9001 Certification
    • Quality Management
  • AS9100 Certification
    • Aerospace and Defense