Tax residents of the Republic of Lithuania by default have the default withholding tax rate, however, there is a possibility to decrease it to 0% by submitting the tax residence certificate described below:
LIETUVOS REZIDENTO REZIDAVIMO VIETĄ PATVIRTINANTI PAŽYMA
LITHUANIAN RESIDENCE CERTIFICATE
State Tax Inspectorate under the Ministry of Finance of the Republic of Lithuania (Valstybinė Mokesčių Inspekcija prie Lietuvos Respublikos Finansų Ministerijos) issues a Lithuanian Residence Certificate (Lietuvos Rezidento Rezidavimo Vietą Patvirtinanti Pažyma) confirming that in the current year is a resident of the Republic of Lithuania within the meaning of the Double Taxation Convention concluded between the Republic of Lithuania and Republic of Latvia.
As per the below:
You can securely upload your tax residence documents via the link.