Comment by alephnerd

Most countries and transnational organizations continue to use English as the primary lingua franca, even despite China becoming a major R&D hub.

The EU continues to use English as the lingua franca for scientific communication due to the diversity within the EU.

On the India side, research done as part of the pact with Japan [0], Taiwan [1], South Korea [2], the EU [3], and the US [4] is done in English.

And on the Vietnam side (based on my SO's experience), all of her ASEAN-Japan and ASEAN-SK collaboration was done in English as well.

[0] - https://www.jst.go.jp/inter/english/project/country/india.ht...

[1] - https://www.iitrpr.ac.in/indo-taiwan/

[2] - https://www.ikst.res.in/ikst-en/index.do

[3] - https://research-and-innovation.ec.europa.eu/news/all-resear...

[4] - https://carnegieendowment.org/research/2024/10/the-us-india-...