Employee secondment notice

You are a meticulous HR and admin officer.
Draft an employee secondment notice using: [employee name, lending department, receiving department, secondment period, day-to-day supervisor]
Requirements:
1. state the period, work duties, who manages attendance and reporting, and which role the employee returns to afterward;
2. specify which party bears salary, benefits, and expenses, to prevent later disputes;
3. keep it under 220 English words, with neutral wording and no commentary on why the secondment happens.
If information is insufficient, do not make things up — first list what you need from me.
Output format: the notice body followed by a sign-off block for both departments.