The state's territory straddles the present-day Malaysia–Thailand border, covering Amphoe Raman in Yala province in Thailand, as well as Hulu Perak District and parts of Jeli and Upper Kelantan regions in Malaysia.

[1][2] The state of Reman was founded on territory carved out from the neighbouring principalities of Pujut, Jalor and Legeh, all part of the Patani Kingdom, in the early 19th century.

[3] In the late 18th century, he and his followers settled in the Kroh Plateau, an area that was receiving a mass exodus of people fleeing from the civil unrest in the Patani plains further north since the Siamese reconquest in 1785.

Previously a border outpost between Perak and Patani in the 18th century, the mineral-rich area was captured in 1790, becoming an integral part of the Reman state.

In 1826, Sultan Abdullah Muazzam Shah of Perak sought the assistance of the British East India Company to regain control of the resource-rich territory.

[4] The border conflict with Perak was followed by a period of relative stability and unprecedented prosperity due to the restoration of mining activities in the region, under the auspices of Toh Nang Patani, a local noble.

Under British mediation, both states agreed that the new border would be located along Bukit Nasha (5.3571123,101.0294051), some 11 kilometres (6.8 miles) southwest of Gerik town.

Nationalist movements in the area in the late 19th century called for a restoration of a sovereign Patani kingdom, hoping to protect native lands and interests without interference from the Siamese government.

[6] "..Setul would not be of no great values to us, and although we might do doubt put forward a very good claim to its part of Kedah and secure it by insistence, I am inclined to think it would be more Politics to turn our claim to account by agreeing to renounce Setul if the Siamese Government will in its stead hand over to us the Lang-kawi Islands and that portion of Raman which comprise the watershed of the Perak River.

The Lang-kawi Islands furnish magnificent anchourages and such have been coveted by various foreign powers, whilst the lower part of Reman is rich in Tin" — Ralph Paget, British Minister to Thailand, in his letter to Edward Grey, Secretaries of State for Foreign Affairs (29 April 1907)[8]Ignited by colonial ambitions, the British aimed to expand their territories in the far east.

By the dawn of the 20th century, they had already acquired a collection of polities consisting of crown colonies and protectorates in the central and southern parts of the Malay Peninsula.

The acquisition of the northern states was deemed essential for the British, as it was strategically located by the mouth of the Strait of Malacca and rich with tin, an important commodity for the Industrial Revolution and trade by the late 19th century.

The UK was also required to provide a loan to finance the construction of the south line of Siamese State Railway which cost £4 million pounds (1909).

Kemp, Manager of Rahman Hydrolic Tin Limited, Klian Intan and Keluong Wan Husain, a noble from Betong, Siam.

It was followed by a flag raising ceremony, symbolising the end of Siamese rule and beginning of Perak's sovereignty in the Lower Reman area.

Branches of Cananga, along the well, Acted as an oar for Miss Nyonya, Akin to a blossom, curled by a dragon, Seek a way to win your desire.

The areas are marked by a Patani-Reman influence, bound together with a common culture, language and heritage as a result from the emigration from the Patani lowlands during the Reman period.

Located in Kampung Selarong, it was built in the late 19th century as a secondary palace away from the administrative centre of the kingdom in Kota Baru (in present-day Yala).

The final resting place of Permaisuri Cik Neng, the Queen of Reman is also located nearby the palatial grounds, her death in 1915 was widely believed due to her devastation after the demise of the crown prince.

[citation needed] While Gerik, a major settlement established in Reman during the rule of Tuan Jagong owes its name from "Gerit", an onomatopoeia for the sounds made by the Bamboo rat, a native rodent that can be found in abundance in area.