O Smach

{{distinguish|text=the O Smach, a stream in Svay Rieng Province}} {{Update|date=February 2026|reason=impacted by 2025 Cambodia-Thailand conflict}}{{Infobox settlement |official_name = O Smach |other_name = |native_name = {{nobold|{{lang|km|អូរស្មាច់}}}} |nickname = |settlement_type = City |motto = |image_skyline = |imagesize = |image_caption = |image_flag = |flag_size = |image_seal = |seal_size = |image_shield = |shield_size = |city_logo = |citylogo_size = |image_map = |mapsize = |map_caption = Location of O Smach, Cambodia |image_map1 = |mapsize1 = |map_caption1 = |image_dot_map = |dot_mapsize = |dot_map_caption = |dot_x = |dot_y = |pushpin_map =Cambodia  |pushpin_label_position =  |pushpin_map_caption = |pushpin_mapsize = |subdivision_type = Country |subdivision_name = {{flag|Cambodia}} |subdivision_type1 = Province |subdivision_name1 = Oddar Meanchey Province |subdivision_type2 = Municipality |subdivision_name2 = Samraong |subdivision_type3 = |subdivision_name3 = |subdivision_type4 = |subdivision_name4 = |government_footnotes = |government_type = |leader_title = |leader_name = |leader_title1 = |leader_name1 = |leader_title2 = |leader_name2 = |leader_title3 = |leader_name3 = |leader_title4 = |leader_name4 = |established_title = |established_date = |established_title2 = |established_date2 = |established_title3 =  |established_date3 = |area_magnitude = |unit_pref =  |area_footnotes = |area_total_km2 = |area_land_km2 = |area_water_km2 = |area_total_sq_mi = |area_land_sq_mi = |area_water_sq_mi = |area_water_percent = |area_urban_km2 = |area_urban_sq_mi = |area_metro_km2 = |area_metro_sq_mi = |population_as_of = |population_footnotes = |population_note = |population_total = |population_density_km2 = |population_density_sq_mi = |population_metro = |population_density_metro_km2 = |population_density_metro_sq_mi = |population_urban = |population_density_urban_km2 = |population_density_urban_sq_mi = |population_blank1_title = |population_blank1 = |population_density_blank1_km2 = |population_density_blank1_sq_mi = |timezone = ICT |utc_offset = +7 |coordinates = {{coord|14|24|36|N|103|41|39|E|region:KH|display=inline}} |elevation_footnotes =  |elevation_m = |elevation_ft = |postal_code_type =  |postal_code = |area_code = |blank_name = |blank_info = |blank1_name = |blank1_info = |website = |footnotes = }}

'''O Smach''' ({{langx|km|អូរស្មាច់}}, {{lang|km-Latn|Or Smăch}}, {{IPA|km|ʔou.smac|pron}}) (also spelled '''O'Smach''' or '''Ou Smach''') is a small Cambodian town on the Thai border in Samraong Municipality of Oddar Meanchey Province, situated north of the city of Samraong. Until 1999, there were intermittent battles, and the area was unsafe as the last remaining Khmer Rouge still had control of nearby Anlong Veng. In 2003, an international border crossing was opened between O Smach and the adjacent town of Chong Chom in Thailand's Surin Province. There has since opened a strip of casinos between the Cambodian and Thai passport control counters, enabling Thais to gamble in Cambodia without needing to go through Cambodian immigration. Gambling is illegal in Thailand and gambling in Cambodia is legal only for foreign passport holders. O Smach is at the northern terminus of Road 68 which turns north off National Highway 6 at Kravanh in Siem Reap Province.<ref name=Hatsu>{{cite journal|last1=Hatsukano|first1=Naomi|editor1-last=Ishida|editor1-first=Masami|title=Will the Emerald Triangle Development Cooperation Be Reactivated?: The Silent Cooperation Scheme between Cambodia, Lao PDR and Thailand|journal=BRC Research Report|date=2012|volume=11|url=http://www.ide.go.jp/English/Publish/Download/Brc/pdf/11_02.pdf|access-date=10 November 2015|series=Five Triangle Areas in The Greater Mekong Subregion|publisher=Bangkok Research Center, IDE-JETRO|location=Bangkok|archive-url=https://web.archive.org/web/20160304090829/http://www.ide.go.jp/English/Publish/Download/Brc/pdf/11_02.pdf|archive-date=4 March 2016|url-status=dead}}</ref>

==Border crossing== Most of Cambodia's northern border with Thailand is formed by the escarpment of the Dângrêk Mountains. A natural pass cuts through the mountains between O Smach and Chong Chom. This pass has been used since ancient times to travel between the plains of lower Cambodia and the Khorat Plateau. Beginning with the Cambodian Civil War and lasting until the surrender of the last remaining Khmer Rouge who had taken refuge in Anlong Veng, the Khmer Rouge controlled the area and generated income by illegally trading Cambodian timber across the border in Thailand. After the final surrender of the Khmer Rouge in 1999, the region surrounding the O Smach pass once again became stable and safe for travelers and, in 2003, the Cambodian and Thai governments opened an international border crossing. The border crossing suffered intermittent closures again between 2008 and 2011 during the 2008–2013 Cambodian–Thai border crisis.<ref name=Hatsu />

The Thai government agreed to fund the extension of Cambodian National Road 68 from the provincial capital of Samraong to O Smach with an unspecified loan amount. Immediately, two casino hotels and a market were built in a strip between the Cambodian border control checkpoint and the Thai border crossing checkpoint at Chong Chom in Kap Choeng District, Surin Province to cater to Thai nationals coming to Cambodia to gamble.<ref name=Hatsu /> Gambling in Thailand is illegal but in Cambodia it is legal, although only for holders of foreign passports. This arrangement ensures Thai citizens can leave Thailand to gamble in O Smach and then return home without having to pass through Cambodian immigration.<ref name=econ>{{cite news|title=Casinos in Cambodia: When the luck runs out|url=https://www.economist.com/blogs/banyan/2014/10/casinos-cambodia|access-date=10 November 2015|newspaper=The Economist|date=23 October 2014}}</ref> Thais living close to Chong Chom are responsible for the bulk of cross border activities. The O Smach border crossing is the least used among the Thai/Cambodian checkpoints. Most tourists en route to Siem Reap and Angkor Wat, cross the border at Poipet which is also the more popular gambling destination due to its relative ease of access from Bangkok.<ref name=Hatsu /><ref>{{cite news|last1=Chan|first1=Muyhong|title=New border crossing set to make trade easier|url=http://www.phnompenhpost.com/new-border-crossing-set-make-trade-easier|access-date=10 November 2015|work=The Phnom Penh Post|date=3 March 2015}}</ref>

O Smach benefits more from international trade. {{Asof|2012}}, O Smach and its Thai counterpart, Chong Chom, had all the necessary customs facilities except for an agricultural quarantine officer. The main product exported from Cambodia through O Smach is cassava. There is also a large market for second-hand bicycles which are imported to Cambodia from Japan, taken to O Smach and sold across the border to Thais at the Chong Chom market. The primary imports at O Smach are used farm equipment, mostly tractors and trucks. Construction materials and petroleum products are also imported to Cambodia through O Smach.<ref name=Hatsu />

==Future development== As of 2015, the only vehicle crossing between Cambodia and Thailand was at Poipet. Vehicles other than those given special permission by their respective central government are not allowed to cross the border at O Smach. However, starting in 2015, a Cambodian company began running a direct bus route from Siem Reap to O Smach. The 2.5 hour 160 km trip costs passengers US$12.50 and caters to "hospital tourists", Cambodians who are heading to the Thai town of Surin, where the Northern Khmer dialect is commonly spoken, for more trustworthy medical treatment.<ref name=Hospital/> After producing passports or border passes and paying 10,000 riels (US$2.50), they cross the border on foot and board a Thai minivan that shuttles passengers on the final leg of the trip, a 45-minute stretch from O Smach to Surin for an additional 80 baht (US$0.50).<ref name=Hospital>{{cite news|last1=Ritz|first1=Naomi-Collett|title=Thai Hospitals Making Inroads|url=http://www.khmertimeskh.com/news/16034/thai-hospitals-making-inroads/|access-date=10 November 2015|work=Khmer Times|date=22 September 2015}}</ref> Also in 2015, at a trade meeting in Siem Reap, Thai and Cambodian officials and entrepreneurs agreed to invest in an air-conditioned bus service between Thailand and Siem Reap through O Smach. The service was expected to begin before the Surin Elephant Round-up to encourage Cambodian visitors.<ref>{{cite news|title=Thai and Cambodian traders sign tens of business deals, worth nearly THB2,000m.|url=http://thainews.prd.go.th/website_en/news/news_detail/WNECO5806270010007|access-date=10 November 2015|work=National News Bureau of Thailand|format=Press release|date=27 June 2015|archive-url=https://web.archive.org/web/20151121083549/http://thainews.prd.go.th/website_en/news/news_detail/WNECO5806270010007|archive-date=21 November 2015|url-status=dead}}</ref>

==References== {{reflist|30em}}

{{coord|14|24|36|N|103|41|39|E|region:KH_type:city|display=title}}

Category:Cities in Cambodia Category:Cambodia–Thailand border crossings Category:Populated places in Oddar Meanchey province Category:Scam centers Category:Cambodia–Thailand border dispute