Dear Som,
Many thanks for taking care of this matter.
Would it be OK and give you the comfort you require if we were to have two originals signed from our side, the signatures being witnessed by a notary public, the notary public certifying the signatories’ power to sign on behalf of Lenzing Aktiengesellschaft (this would actually be easier from our point of view than the formal steps you suggest below, as local law does not provide for company seals or statutory declarations)?
If that works for you, can you pls provide us with two hardcopy originals executed from your side in the form as suggested by you below. We would then arrange as indicated above and provide you with the finalized documents (in advance via email).