Oasis

Oasis is a closed charter city of the Koizumi Ichizoku, located 500 km north of the southern polar circle, 2000 km north of Nanpo no hyobo, on the Shiretoko Peninsula, Nankyoku, amidst the Shiretoko Sebone Yukinomori. It is an engineering marvel few people see in person. Oasis is the first city on the planet to achieve zero emissions, and zero waste, recycling is serious business. The city population of 22394 is governed by a Council of Commissioners, with a council elected Mayor, currently Sue Yoriharu. The city's economic base is generated primarily from mining; metals, minerals, salt, gemstones, and dimension stone; commercial fishing, and sea farming. The city's primary employer is Kyokuchi Yoru Sangyo, Koizumi's semi public mining operations umbrella company. Due to the subarctic oceanic climate there is minimal outdoor seasonal agriculture, mostly occurring during the summer months, largely consisting of fishing, hunting, and trapping. Most of the city's food sources are produced via aquaponics, hydroponics, and aeroponics. There are also poultry farms, small goat herds, mushrooms,  and a dwarf forest of fruit and nut bearing trees, (the most popular social media trees on the planet) all raised in the underground caverns and tunnels of Oasis. The city proper is built underground in enormous natural and constructed caverns and tunnels between Mount Iwo and Mount Rausu, two dormant stratovolcanoes, on the shores of Kohu Hanu Lake. The lake is about 100 meters below the surface, and is an average of 150 meters deep, with an area of 20000 square meters, it is fed by several hot mineral springs. It provides fresh water, and winter dockage for the city's fishing and seagoing vessels. The city is a labyrinth of tunnels and caverns, complete maps of which are classified. Mining, industrial, and farming tunnels range over the underground of most of the peninsula. There are secure access tunnels for light and air circulation, and secure entrances for seasonal agriculture, express cargo, and mail delivery. There are no rail lines, or landing strips, the city is only accessible from the sea, or from small bush planes and VTOL's. Public transportation within Oasis is mostly small electric vehicles, bicycles, or pedestrian paths. Utilities are provided by geothermal, hydropower, and hydrocell energy sources. The main entrance to the city is accessible through Ashika Dokutsu, shared with colonies of sea lions, sea otters, and nattiq seals, via Hangetsu Wan and Serpent Run, a river that flows into the bay from Kohu Hanu Lake, through several security checkpoints. Hangetsu Wan is home to several floating piers; which include boat building and maintenance, processing centers, living spaces, markets, offices, hospitality centers, galleries, restaurants, bars, and public spaces; docks, and a marina that is the summer port for Oasis' seagoing vessels. Oasis sponsors the only professional association football club (Oasis Badgers) that rarely plays their own home stadium; which has its own floating pier, used mostly for local clubs; they play at home only when they are in the finals. The piers are open from the first thaw, until the winter freeze, when the port is emptied and locked down. During the summer the port is occasionally visited by cruise liners and yachts for the Midnight Sun Festiva (this year it coincides with the 175th anniversary of Oasis) and whale watching tourists, most of which never go past the piers.  For the luxury tourist market there are several ryokan with onsen, ski resorts, and photo safaris nestled in the mountains, and inside limited access tunnels, available to exclusive wealthy guests. Oasis immigration and tourism are strictly limited and controlled, however Oasis is one of the most requested cities to emigrate to. It has some of the highest starting salaries on planet and the quality of life for even the average fisherman, factory worker, or miner is very high. Local companies pay extremely well for loyalty and secrecy, especially structural, mechanical, mechatronic, and geotechnical engineers. At this time Oasis has the third largest mining operation on the planet, with millions of ounces of gold, (currently valued locally at 616 Ryu per ounce)corundum, solid carbon, salts, sulphur, silver, and copper coming out of the mines yearly, as well as lesser quantities of other valuable materials. (including fossils) Security is quite high, breaches are most often lethal.   
Oasis is home to a few of the largest, and wealthiest sans ichizoku owned companies on planet. Hokkyokuguma Saiko, a publicly owned corporation, owns or controls twenty seven percent of the mineral rights around Oasis, and has diversified into many industries across Nejiro. It is currently valued at 1352.69 Ryu a share. Mister Robotto is a publicly traded company that designs and manufactures robots, exosuits, and industrial mechs. They are currently valued at 197.87 a share. Kaiyo Tansa is a semi publicly owned company invested in oceanography. They design and construct cutting edge submarines for every market, and conduct and sponsor explorations throughout the system in all facets of oceanography, their scientists and engineers publish frequently in academic journals, and file patents regularly. Locally Kaiyo Tansa brand submarines are used to hunt sea dragons and mega sharks, and to collect other sea harvests. The current value of the company is 208.88 Ryu per share. Suki Kyuka is a top tier luxury ski resort company that is privately owned, but partnered with Fenix Consortium, so they have limited access to Crown Lands. They have recently expanded into locations worldwide, and in the last decade they have successfully sponsored yearly professional winter games, and a professional world ski tour. Nolan Jinju harvests local pearls prized for their yellow shades of color, from cream to saffron to imperial yellow and golden, and all the shades between. They design and create unique pieces of jewelry (many of which have been featured in movies, television, and red carpet events) utilizing their pearls and locally mined gemstones, including colored diamonds, lapis lazuli, aquamarine, topaz, garnet, sapphire, and jade. The pieces regularly generate millions in income through Auction, Gem, and Jewelry Houses worldwide and in the Inner Sphere. Their flagship store is located prominently in Bridges. The company is currently valued at 138.56 Ryu per share. Zero Ika is a public company manufacturing upscale major kitchen appliances for restaurants and homes. More than half their inventory is exported to the luxury markets of the Inner Sphere. The current value of the company is 159.68 Ryu per share. Ashikawa Law Group is a private corporate business law firm specializing in contracts, they have offices in every major city on Nejiro, and also in The Enclave.