The phrase "a key representative" is correct and usable in written English.
It can be used to describe someone who plays an important role or has significant influence in a particular context, such as an organization or event.
Example: "As a key representative of the company, she will be attending the international conference to discuss our latest innovations."
Alternatives: "a principal representative" or "a major representative".
Ndiaye is also seen as a key representative of French diversity in Macron's close circle of advisers, who were mainly young men in suits, dubbed "The Mormons".
Both vases date from 340 330 bc, and both are in the so-called Kerch style, of which the Marsyas Painter is a key representative.
By this time, Edelgireyev had undergone two operations on his injured leg in Istanbul and was seen as a key representative of the Caucasus Emirate group in the city.
In this work, we have prepared a series of supported catalysts with varying iron content and support materials, and evaluated the resulting H2 production from hexadecane, a key representative component of diesel fuel.
Another 'upstream' TF, Hnf6, was included as a key representative of a family of TFs expressed early in pancreas development but is not strictly pancreas specific.
Loblolly pine (LP; Pinus taeda L). is an organism of tremendous economic and ecological importance and a key representative of the conifers, an ancient lineage of plants that dominates many of the world's temperate and boreal ecosystems [1].
In all the communities, the chief appointed a key community representative, usually the Assembly Man (elected local government representative) to assist in the selection of key informants.
We were honored and proud to have him as a friend, supporter, trustee and key representative of our mission.
So did a key supporter, Representative Erik Paulsen, Republican of Minnesota.
Several members of the House Foreign Affairs Committee who voted for the resolution, including a key sponsor, Representative Adam B. Schiff, Democrat of California, are Jewish.
"It seems like he is a key player," Representative Jim Jordan, Republican of Ohio and a staunch supporter of the president, told Fox News this month.
