Question: Where is the mobile company named Tecno Mobile, who created HiOS, located?

Context paragraphs:
OpenSignal: OpenSignal is a company that specializes in wireless coverage mapping.  The company crowdsources data on carrier signal quality from users who have its consumer mobile application installed.  Consumers can view the crowdsourced data either online or in-app in the form of colour-coded maps that aid purchasing decisions by showing unbiased data from different carriers side-by-side.  In 2013 OpenSignal was named the "UK's Most Innovative Mobile Company" by UK Trade & Investment.

Cell C: Cell C (Pty) Ltd (stylised as CELL©), a South African mobile company, offers consumers a wide range of prepaid, hybrid and postpaid products and services, including voice, data and messaging services.  With its focus on affordable access, Cell C is the only mobile operator in South Africa to offer customers Free Facebook through Free Basics by Facebook; and for a capped monthly fee of R12, customers have unlimited WhatsApp usage.  Cell C was also the first in the country to commercially launch Wi-Fi Calling, a service which has completely transformed the travelling experience for South Africans.

Mobile Company of America: The Mobile Company of America was a U.S. steam automobile manufacturer founded in 1899 by John B. Walker after a fallout with businessman Amzi L. Barber, whose financing had earlier allowed Walker to purchase the now well-known Stanley Steamer concern.  By 1903, the Mobile Company of America was out of business, while Barber's Locomobile Company of America abandoned steam car production in 1901 in favor of petrol-engine vehicles, selling the Stanley brothers back their factory and steam engine patents for $20,000 despite having originally paid $250,000 for the operation.

Iris Browser: Iris Browser was a web browser for Windows Mobile smartphones and personal digital assistants (PDAs) developed by the Torch Mobile company.  The first version of Iris Browser was released in 2008.  It is currently one of only three web browsers designed for portable devices which scores a 100/100 on the Acid3 test.

Akinator: Akinator, the Web Genie is an internet game and mobile app based on Twenty Questions that attempts to determine which character the player is thinking of by asking them a series of questions.  It is an artificial intelligence program that can find and learn the best questions to ask the player.  Created by three French programmers led by RedstoneSpecial in 2007, it became popular worldwide in November 2008, according to Google Trends.  In Europe popularity peak was reached in 2009 and Japan in 2010 with the launch of mobile apps by French mobile company SCIMOB, reaching highest ranks on app store.  While playing "Akinator", questions are asked by a cartoon genie.

WidSets: WidSets is a mobile runtime technology, and a mobile service powered by the said technology, based on the Java MIDP 2.0 platform, from the Finnish mobile company Nokia.  It is both a widget engine and a widget deployment service where mini-applications called widgets can be uploaded to WidSets servers to be compiled and then automatically deployed to MIDP 2.0 compliant mobile phones running the WidSets client software.  The widgets are created using Extensible Markup Language (XML), Cascading Style Sheets (CSS), and Helium scripting language.

Tecno Mobile: TECNO Mobile is a Chinese mobile phone manufacturer.  Tecno began operations in July 2006 in Hong Kong.  With its first research and development centre in Shanghai, China, Tecno Mobile was founded as Tecno Telecom Limited, but later changed its name to Transsion Holdings with Tecno Mobile serving as one of its subsidiaries.  Tecno focused its business on Africa and the South Asian market.

Social messaging: Social messaging or social messaging applications or chat applications are instant messaging or mobile messaging (Short Message Service/SMS) clients that are built around social networking platforms.  Some examples of popular social messaging include BlackBerry Messenger, Facebook Messenger, Google Hangouts, KakaoTalk, Line, WeChat, WhatsApp, Telegram and Viber.  While both require internet connection, social messaging apps differ from traditional IMs because they don't require a computer to use; the chat applications run particularly on smartphone devices, where it challenges other widely used mobile features, such as calling, texting, and emailing.  Chat applications are topping the iOS and Android most downloaded applications lists.  More and more people are upgrading from feature phones to smartphones accelerating the move from traditional calling and SMS (which are paid services) to social messaging (which are generally freemium or subscription-based), to become the dominant way of staying in touch on the phone, because it is generally cheaper to send IM messages via social messaging than to send SMS (via mobile company), not limited to the 140-character limit of SMS, and they have more features than regular texting.

HiOS (mobile operating system): HiOS, is a customized version of Android mobile operating system developed by Hong Kong based mobile phone company Tecno Mobile.  It allows for a wide range of user customization without requiring rooting the mobile device.  The operating system is also bundled with utility applications that allow users to free up memory, freeze applications, limit data accessibility to applications among others.

Telecommunications in Tajikistan: The conventional telephone system is in poor condition because it has received little investment in the post-Soviet era.  As of 2007 there were 340,000 telephone lines in use, a ratio of one per 21 people.  Many towns are not connected to the national network.  In the early 2000s, the state telecommunications agency, Tajiktelekom, received international aid to upgrade the telephone system.  In 2007 there were 3.5 million mobile telephones in use, compared with only 47,300 in 2003.  This makes Tajikistan the 90th most cellular-capable country in the world.  Among several cellular networks, the Babilon Mobile Company, a US-Tajik joint venture, claimed to have 40 percent of the market in 2006.  The June 2006 launch of the KazSat communications satellite from Kazakhstan was expected to reduce the dependence of all the Central Asian countries on European and U.S. telecommunications satellites.  Launch of a second KazSat is planned for 2009.  The country's international calling code is 992.

Supporting paragraphs: HiOS (mobile operating system) Tecno Mobile
Answer: Hong Kong