expression
related to; in relation to; concerning
Formal written expression used to introduce a topic or subject matter. Often appears in official documents, news, and academic writing. Synonymous with に関して (にかんして), but に関し is slightly more formal and concise.
この問題に関し、ご意見をお聞かせください。
Please share your opinion concerning this issue.
新製品に関し、いくつか質問があります。
I have several questions regarding the new product.