It is not clear from your sentence whether you mean past or present tense. Using your words (past tense): I emailed you as you asked me to inform you of any progress he has made. Using your words (future tense): I will email you as you asked me to inform you of any progress he makes. Other options: As requested, I have emailed you to inform you of his progress. As requested, I will email you to inform you of his progress.