Willem J. Nainggolan Ak, MBA, CA, CPA-Aust

Mangatur Nainggolan Law Firm > Team Members > Willem J. Nainggolan Ak, MBA, CA, CPA-Aust
Willem J. Nainggolan Ak, MBA, CA, CPA-Aust

Willem J. Nainggolan Ak, MBA, CA, CPA-Aust

Tax Consultant

As tax and corporate service consultant for KAP Yosua & Patners, Willem provide technical guidance and review to auditors and managing business advisory services section. Also, Willem provide business set-up advisory, payroll processing, investment due diligence, business valuation, transfer pricing documentation (TP Doc) preparation, and pre-IPO preparation. Select engagements include: – Private equity due diligence of domestic express parcel service conglomerate, – Anti-Bribery and Anti-Corruption (ABAC)-compliant organization structure and financial policies and procedures for leading domestic card manufacturer; – and Grant disbursement monitoring and audit for international fund with focus on agricultural development.

During 2009 to 2018, Willem also as lecturer at State College of Accountancy or Sekolah Tinggi Akuntansi Negara (STAN) and President University at Cikarang (until Dec 2016) and Teaching Fundamentals of Corporate Finance, Cost Accounting, and Auditing.

Nov 2017 – Jan 2018, Willem as consultant in Financial Management and Procurement Audit for United Nations IFAD where he conduct audits on utilization of Loans and Grants from the International Fund for Agricultural Development, a special UN Agency dedicated to eradicating rural poverty and hunger. The projects being audited were: Village Development Program, Smallholder Livelihood Development Project in Eastern Indonesia, Coastal Community Development Project, Integrated Participating Development and Management of the Irrigation Sector Project.

Nov 2012 – Oct 2016, Willem served Solway Group Indonesia as General Manager Finance where he managed all financial, accounting, taxes, IT, procurement areas including financial reporting to Singapore Office and Moscow Head Office, group budgeting and consolidation, and treasury management for 7 (seven) nickel and coal exploration companies under the group.

Mar 2012 – Nov 2012, Willem worked at Parker Randal Assurance and Advisory provided corporate finance and management consulting services for clients in chocolate ingredients, land transportation and logistics, and coal mining contractor companies.

Feb 2011 – Feb 2012, Willem as Group Financial Controller – Indonesia, Indo Mines Ltd, Australia.Managed all financial and accounting activities such as: financial reporting, budgeting, and treasury management for 3 (three) mining companies operating in Indonesia under Indo Mines Ltd, Australia group.

Apr 2009 – Jan 2011, Willem worked at PT. Gemala Borneo Utama as Chief Financial Officer – Managed finance, financial reporting, budget management, legal affairs and operational affairs of PT Gemala Borneo Utama (a Robust Resources LimitedAustralia company). Detailed duties and responsibilities include Finance: Oversee all financial and accounting activities, Ensure that accounting and financial systems are appropriate and well- managed and are in accordance with internal and financial control systems approved by the Managing Director of Robust Resources Limited. Liaise with corporate officers, directors, and external parties on financial matters and reporting; Ensure compliance with national and international standards for accounting and financial reporting. Budget Management: Oversee all budgeting activities and ensure strict budget control; Legal affairs: Ensure compliance with all local, national, and international legal requirements; Liaise with company legal advisors: Assist with negotiations and legal requirements for new minerals assets acquisitions: Contracting: Oversee all contractual arrangements for exploration, drilling, and equipment: Operations:. Liaise with Exploration Operations Manager and Site’s Coordinator to ensure field operations are running smoothly.

Jul 2006 – Mar 2009, Willem served as General Manager – Indonesia, Kalimantan Gold Corporation Limited Managed finance, administration, budget management, personnel, legal and operational affairs of PT Kalimantan Surya Kencana (KSK), PT Jelai Cahaya Minerals (JCM), and Balikpapan Coal Projects, which includes providing support to The Yayasan Tambuhak Sinta (YTS) and the KSK, JCM, and BCP exploration teams.
Jan 2004 – Jun 2006, Willem worked at PT Billiton Indonesia, subsidiary of BHPBilliton, Australia. As Finance Team Leader – Involved in and led all facets of accounting and finance at coal exploration companies, including day to day accounting, Banking and Treasury, Senior Management Payroll, Tax issues, and monitoring company’s assets. The duties include setting policies and procedures, budgeting/forecasting for finance department, couching and coordinating all departments’ financial budget, and monitoring and presenting Budget achievement to the President Diirector and other Senior Management. Every month, mid-year, and end of year, prepared and sent statutory reports using SUNSYSTEMS accounting software to the Head Office in Melbourne, Australia. The company’s group in Balikpapan, Indonesia comprises of 7 (seven) CCoW (Coals Contract of Work) Companies and 1 (one) Coal Services Company.

Apr 2003 – Dec 2003, Willem worked at PwS Consulting, Balikpapan as Managing Partner – Provided business consulting services for Clients dealing with Hotel and Apartment, Prawn Factories, and Travel Agency businesses in Balikpapan, East Kalimantan. The services mainly evaluating clients long term business plan and developing yearly finance and budget system. The duties include couching companies’ senior officers on budget and its strategic planning setting, and parameters setting to evaluate budget performance. Also, setting company policies and procedures complete with the manuals.

Mar 2001 – Mar 2003, Willem as Finance Director – PT Eka Dharma Jaya Sakti, Tbk. Volvo Truck & Parts Authorized Distributor: Involved in and directed all facets of accounting and finance, including day to day accounting, Banking and Treasury, Tax and Custom, senior management payroll, Information Technology issues, and monitoring company’s assets and stock. The duties include setting policies and procedures using SCALAERP systems, budgeting/forecasting for all departments or business units, and monitoring and presenting Budget achievement to the Board of Commissioners and other Senior Management. Since the company is a public company, the duties include overseeing the preparation of all compulsory reports to Indonesia Security Exchange Commission (BAPEPAM) and present monthly and yearly reports to Board of Commissioners and Shareholders.

Aug 1999 – Feb 2001, Willem worked at NTC Consulting – Public Accounting firm Drs. Nikmat Siahaan as Audit and Accounting Services Manager, Supervised team in joint operation with Grant Thornton Indonesia conducting Ex-Post Audit for Projects throughout Indonesia funded by World Bank Loans. Overall audit planning, staff coaching, supervision, and delivery of results to World Bank officers.

Nov 1998 – Jul 1999, Willem served PT Nestle Indonesia as Internal Audit Manager – Directed a team of internal audit executives in auditing the operation of Milk and Coffee Factory, Regional Sales Offices, Branches, and Medical Delegates Offices within PT Nestle Indonesia

Jun 1998 – Oct 1998, Willem worked at PT Bakrie & Brothers Trading as Chief Operating Officer – Led financial and operational restructuring program on liquidating huge stock of imported fertilizers and steel plates, including employee-restructuring and setting company turn-around program.

Dec 1997 – May 1998, Willlem served as Corporate Internal Audit Manager for PT Bakrie & Brothers
Directed a team of four internal auditors in auditing the operation of Business Units within core business of infrastructure. The duty also includes giving internal consulting for new business units, PT Bakrie Building Industry and PT Bakrie Trading, in financial forecast, planning and budgeting, and setting company policies and procedures

May 1991 – Jul 1995, Willem served as Team Leader – Government of Indonesia, Financial and Development Supervisory Board or BPKP (Badan Pengawasan Keuangan dan Pembangunan) Foreign Oil & Gas Contractors Division. Led a team of four to six government auditors in tandem with PERTAMINA (BPPKA or now BP MIGAS) auditors in auditing major oil & gas production sharing contractors: Mobil Oil Indonesia, Caltex Pacific Indonesia, and Talisman Ogan Komering Ltd, Unocal, and PT. PERTAMINA Head office Jakarta.The duties cover financial audits on cost recovery and calculation of taxes on interest, dividend, and royalty, and operational audit on procurement and EPC contracts audits. The scope of the audit assignments also covered examination of financial data in the U.S. and Canada head and branch offices

Aug 1988 – Apr 1991, Willem served as Senior Auditor – Government of Indonesia, Ministry of Finance-Head Office of Directorate General of Taxation. Led a team of four auditors in investigating corruption and tax-fraud by various private companies, following up public reports through P.O. BOX or Tromol Pos 5000. The duty also includes working together with a team from Indonesia Attorney General office investigating corruption on the misuse of Central Bank Liquidity Loan (BLBI) at Bank Perkembangan Asia, Jakarta

Apr 1986 – Apr 1988, Willem served as Audit Supervisor – Accounting Firm Hanadi and Sudjendro. Supervised team in conducting operational audits and compliance audits (SOE audits) for World Bank funded projects

Aug 1982 – Jul 1985, Willem served as Junior Accountant – Government of Indonesia, Financial and Development Supervisory Board or BPKP (Badan Pengawasan Keuangan dan Pembangunan) Representative Office of South Sulawesi Assisted Senior Accountant in conducting audits of Development Projects funded by Government of Indonesia Budget and World Banks (IBRD, OECF, ADB, IDA) loans in eastern Indonesia


MBA in Finance, University of Arkansas, Fayetteville, Arkansas, 1997
Management Development program, The Economics Institute, Boulder, Colorado, 1995
Accounting Degree, State College of Accountancy or STAN, Jakarta, 1988
Accounting Diploman, State College of Accountancy or STAN, Jakarta, 1982

HONORS Member of Indonesian Chartered Accountant Member of CPA Australia
RECENT TRAINING Transfer Pricing, Indonesia; Certified Financial Modelling, Singapore