Most travel writing treats Medan as a transit point to Lake Toba. It is more interesting read as the administrative capital a commodity boom built, and the mechanisms that built it are still running, in different crops and with the state now holding the price levers.

What the country sells

For January to February 2026 the statistics agency reported the leading non-oil-and-gas export groups as animal and vegetable fats and oils at US$6.49 billion, mineral fuels at US$4.01 billion, iron and steel at US$2.70 billion, nickel and articles thereof at US$1.97 billion, and footwear at US$0.99 billion. The trade balance had been in surplus for 70 consecutive months since May 2020.

Two of those five are palm oil and coal, and two more are the downstream products of the nickel policy discussed below. Footwear is the only line in the group that looks like conventional light manufacturing. Our guide to what changes outside Java covers that separately.

Coal, and the domestic obligation

The energy ministry's statistical handbook, published July 2026, gives 2025 coal production at 817,478.70 thousand tonnes, about 817.5 million, down 2.2 percent from 836.1 million in 2024. Exports came to 522.6 million tonnes, down 5.9 percent, and domestic sales to 246.9 million tonnes, up 6.1 percent.

A ministerial decision of 21 November 2022 sets the domestic market obligation at 25 percent of planned coal production, allocated to power generation and industry. Note the two figures measure different things: domestic sales of 246.9 million against production of 817.5 million is about 30 percent of actual output, while the rule is 25 percent of planned output.

Nickel, and how the ban actually works

The instrument is a 2019 energy ministry regulation, promulgated 30 August 2019 and effective 1 January 2020. Its mechanism is worth understanding because it is not a straightforward prohibition: the regulation provides that directorate-general recommendations for selling nickel ore below 1.7 percent grade abroad are valid only until the recommendation expires or 31 December 2019 at the latest. It extinguishes the export channel rather than banning the commodity.

Behind it sits a longer downstream-processing policy running from a 2012 regulation on mineral value-addition through 2014 and 2017 successors, supported by a 2013 presidential instruction on accelerating domestic mineral processing. Nickel appearing in the export table as articles rather than ore is the intended result.

Cooking oil, where the policy meets the shelf

This is the commodity mechanism a visitor actually encounters. A trade ministry regulation signed 9 December 2025 and in force from 26 December 2025 governs packaged palm cooking oil and the subsidised MinyaKita programme, replacing a 2024 predecessor and itself amended in July 2026.

Two provisions matter. The regulation states that the minister sets both the domestic selling price obligation and the retail ceiling separately, rather than fixing them in the regulation itself, with factors listed as raw material, production, packaging, distribution, margin and other costs. And it requires producers to distribute at least 35 percent of their realised domestic market obligation through the state logistics agency or state food enterprises.

MinyaKita itself is a government-owned trademark, registered to the domestic trade directorate-general of the trade ministry.

Cooking oil shows up in the inflation data too: the statistics agency named minyak goreng among the dominant drivers of March 2026 inflation, which ran at 0.41 percent month on month and 3.48 percent year on year against 1.03 percent in March 2025. There is a companion piece on Indonesian-owned food brands.

How Medan was built

The city government publishes the sequence, and it is unusually specific. In 1863 the Sultan of Deli granted land for tobacco cultivation. In March 1864 samples of the harvest were sent to Rotterdam for quality testing and the leaf was found to be of high quality for cigar wrappers. In 1866 Jannsen, Clemen, Cremer and Nienhuys founded the Deli Maatschappij at Labuhan. By 1874 twenty-two plantation companies were operating.

The decisive move was administrative rather than agricultural: Nienhuys relocated his company office from Labuhan to the settlement of Medan Putri, turning it into a trading centre. On 18 May 1891, with the completion of the Maimun Palace, Deli's capital officially moved to Medan.

That is the whole logic of the city. It is a plantation company headquarters that became a provincial capital, which is why its colonial core is commercial architecture rather than fortification.

What survives, and what is documented about it

The provincial government lists among the city's tourist objects the Maimun Palace alongside the Grand Mosque and Kolam Raja, the Tjong A Fie house with the Kesawan quarter, and old colonial-period buildings generally. The city government notes surviving fort ruins at Deli Tua and cannon remnants visible in the Maimun Palace forecourt.

That is a tourism listing rather than a heritage designation, and no formal cultural-heritage designation for the Tjong A Fie mansion, the Maimun Palace or any former Deli Maatschappij building could be verified at national, provincial or municipal level. Nor are opening hours or admission fees published on any official page, so none appear here.

The port

Belawan is operated as a branch of the state port company's Regional 1 division, at Kapten R. Sulian No. 1, Belawan, with a separate passenger terminal listed at the same location. Group-wide the operator handled 19,785,539 TEU in 2025, up 5 percent, with 369,813 vessel calls, up 16 percent, and 195.2 million tonnes of non-container cargo, down 3 percent.

Belawan's own throughput is not published in the retrievable material, so the port's individual scale is not stated here. The adjacent question of what leaves the country is treated separately.

What this guide does not cover

Indonesia's palm oil production volume, global rank, national planted area and North Sumatra's share of it are all unverified: the plantation directorate's statistics book sits behind a request form and the provincial yearbook's tables could not be extracted. The MinyaKita retail ceiling and the palm oil export levy rate are unverified. Indonesia's nickel production volume is unverified, as the mineral directorate's site was under maintenance. Belawan's own throughput and its formal port classification are not stated. North Sumatra's sector shares of regional product could not be retrieved, and the one Medan-specific figure available dates from March 2001. No opening hours or admission fees are given for any site.