A serious plant supplier should provide layout and utility requirements, commissioning and startup assistance, operator training, and baseline recipes aligned to target grades. They should support calibration of dosing systems, mill setup, and initial QC correlation between lab tests and field performance. Expect documentation for maintenance, cleaning procedures, and spare parts lists. They should also offer performance troubleshooting after handover, such as guidance on pH drift, instability, pump shear issues, or tank separation. Remote support and availability of critical spares can be decisive during peak production season.