"I’m optimistic when their situation changes and when F1 evolves, we can engage them again as Honda have always been important and welcome members of the F1 community in the past and hopefully for the future."
Recognising the difficulties being faced by the likes of Honda in the current Covid climate, Brawn added: "All automotive companies are facing massive challenges at the moment.
"We as F1 need to respond to that and make sure F1 meets those challenges, stays relevant and becomes more relevant to provide automotive partners with viable challenges within F1 which can provide support with their objectives away from F1.
"I hope a new power unit formula, which will be introduced no later than 2026, will encourage them to come back again.
"We’ll also be encouraging them to be part of new FIA working groups, which will recommend what sort of power unit we will adopt in the future.
"They have been great partners in F1 and I look forward to working with them in future."
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