Correct sentence

[Kotecha]

Dear teacher,

Please guide me as to which of the following is correct.

1. Azaz is one of the company's first electricians, who is recruited from the local district block.
2. Azaz is one of the company's first electricians, who are recruited from the local district block.

Thank you.

[Alan]

Only 2 is possible as a sentence.

(If the intended referent of 'who' were Azaz, you would need to say e.g.

Azaz, who was recruited from the local district block, is one of the company's first electricians.)