The Internal Audit Unit is a work unit that performs the internal audit or internal control function. The vision of Internal Audit is a trusted and professional management strategic partner in supporting the achievement of the Company's superior performance.

To achieve this vision, PKT’s Internal Audit Unit has several missions:

1. Providing added value to the Company through the implementation of objective and independent risk-based assurance and consulting.
2. Improving the harmonization and synergy of the internal audit function between the Company, Subsidiaries, Audit Committee and External Audit.
3. Improving personnel competency in a sustainable manner and optimizing the use of information technology
4. Encouraging innovation and continuous improvement activities in the Company.

Interbal Audit Unit annually prepares an Annual Audit Work Program with reference to the company risks, the programs contains details of planned audit, evaluation, mentoring and consultancy activities to be carried out within one year. Competence improvement is also continuously carried out by Internal Audit Unit to answer the challenges of Pupuk Kaltim's business development, one of which is with national and international certifications such as Qualified Internal Auditor (QIA) from the Internal Auditor Education Foundation, Certified Risk Professional (CRP) from TAP Kapital, Enterprise Risk Management Associate Professional (ERMAP) and Enterprise Risk Management Certified Professional (ERMCP) from the Center of Risk Management and Sustainability (CRMS) Indonesia and Certified Information System Auditor (CISA) from the Information Systems Audit and Control Association (ISACA).