La traducción usual en el contexto de la administración, actividades comerciales o bursátiles, es "anexos". Como en la expresión usual en cartas: "please find enclosed ...."

Referencia para la acepción:
https://www.linguee.com/english-spanish/search?source=auto&q...


Algunos ejemplos de búsquedas de Google mostrando el uso en el mismo contexto de la consulta (información formal bursatil):


North Square Investments Trust Form N-14 Filed 2018-09-13
http://pdf.secdatabase.com › ...
13 sept 2018 — through the mailing of the Proxy Statement/Prospectus and its enclosures, ... dividend reporting forms, and other tax-related reports of.

https://publicsecurities.brookfield.com › documents
PDF
Prospectus with its enclosures on or about December 23, 2019. ... all material Federal and other tax returns, dividend reporting forms, and.

CHARTERED SECRETARY. Wishing all THE JOURNAL FOR ...
https://docplayer.net › 49991692-C...
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... is being issued for remittance of dividend. Reporting of FDI (A) Reporting ... ENCLOSURES Copies of Balance Sheet of all the years where there has been ...

Fragmentos de este último documento:

"APPLICATION FOR COMPOUNDING
Duly completed application form (in duplicate) as appended to the Foreign Exchange (Compounding Proceedings) Rules, 2000 to the Compounding authority (RBI)
Details of contravention
Information in Table A,B & C to the application form as detailed
below
Other enclosures"
...
"ENCLOSURES
• Copies of Balance Sheet of all the years where there has been
foreign inward remittance and allotment of shares.
• Reasons of contraventions be given for all the contraventions mentioned in the memorandum issued to the applicant.
On submission of duly completed documents, the RBI re-studies the..."