Mike Krack replaced former team principal Otmar Szafnauer at the Aston Martin F1 team ahead of the 2022 Formula 1 season.
Currently, the Aston Martin F1 team use Mercedes power units as well as gearbox and rear suspension within their cars.
The current 1.6-litre V6 engines will be retained in F1's engine regulations for 2026, but the MGU-H component will be removed.
It had been hoped and expected that the race's chapter would be closed at a meeting of the F1 Commission on Monday.
Zhou, 22, has joined Alfa Romeo for the upcoming season, making him the first Chinese driver in Formula One history.
Vettel, who is also a director of the Grand Prix Drivers' Association, has thrown his support behind the embattled Australian.
The Silverstone-based team, which is entering its second season back on the Formula One grid, unveiled the AMR22 in an online launch.
The four-time former Formula One World Champion has long been a fan of the event, winning the Nations Cup element seven times for Germany.
Aramco will work with Aston Martin to help the team meet Formula One's target of cars powered entirely by sustainable fuels by 2025.