Seven Color Stone Group

Biodata

Feature	Information
Name	Seven Color Stone Group (七彩石集团)
Alias(es)	Seven Color Stone; Seven Color Stone Mechanical Factory
Affiliation	Great Hua Empire; later the Earth Federation
Occupation/Role	Private industrial-technology, aerospace, and spacecraft manufacturer
Leadership	Zhang Yi — Chairman/Director
Status	Active
First Appearance	81

Background

Seven Color Stone began as a small mechanical workshop under Zhang Yi. By the time it was renamed from Seven Color Stone Mechanical Factory to Seven Color Stone Group, its operations already covered glass chemistry, material research and smelting, electronic software, mechanical processing, and product manufacturing. Its Xian County industrial park was enclosed by a newly built perimeter wall and expanded main gate. 116

The company first drew major attention through its large-aperture telescope. At an astronomical-instrument exhibition, its telescope held a slight advantage over Sakura Astronomical Instruments in clarity and observable distance, while its optical glass was considered incomparable to the rival product. 81

As Seven Color Stone expanded, it built high employee compensation and a strict internal management system. By the battery-factory acquisition period, it had more than 10,000 employees, including over 9,000 system-hired Scholars. 161 175 234

Technology & Industrial Portfolio

Field	Documented products and capabilities
Optical and special glass	Developed high-performance optical glass, Seven Color No. 1 and No. 2 Special Glass, and other specialist glasses. Its special glass is used as a machine-tool bed material because it has almost no stress while offering vibration and processing performance comparable to gray cast iron. 183 198
Bearings	Built bearing-steel smelting and high-precision-bearing production lines; annual output reached 30 million bearing sets, with plans to double it the following year. Its bearings were assessed as meeting international first-class standards and entered aerospace use. 120 126 167 218
Machine tools	Manufactures non-CNC, CNC, and ultra-high-precision CNC machine tools. It passed qualification review for ultra-heavy ultra-high-precision CNC machine production after beginning trial production of its domestically developed design. 169 199 201
Battery technology	Developed a new solid-state lithium battery and used acquisitions and joint ventures to expand production. It initially restricted domestic battery supply to selected purely Chinese-funded partners. 240 247
Photon computing	Established Seven Color Photon Technology and achieved trial production of photon materials and the first mass-produced photon chip. Photon-chip supply was initially prioritized for national defense and eligible domestic companies. 275 276 291
Aero engines and flying vehicles	Developed flying-car engines, an Electric Injection Aero Engine, and a new-concept aero engine that passed a 5,000-hour test run. Its new-concept engine is stated to reach 30–40 tons of maximum thrust. 156 213 332
Spaceplanes and spacecraft	Developed the Overlord Spear-class spaceplane, later expanded into spaceplane and spaceship manufacturing, and retained a monopoly on spaceship-engine manufacturing technology after the alien war. 366 389 601 613
Shipbuilding	Applies its materials, intelligent technology, precision processing, photon computers, and special marine steel to shipbuilding and ocean-survey vessels. 265 304 306

Corporate Structure

Entity	Relationship to Seven Color Stone Group	Function
Seven Color Stone Battery Manufacturing Factory	Acquired from Jiangnan Battery Manufacturing Factory. 234 235	Battery production base.
Seven Color Yadi Battery Manufacturing Company	Formed after Seven Color Stone invested in Yadi Battery Company; Seven Color Stone retained controlling rights. 247	Solid-state lithium battery production.
Seven Color Stone Shipbuilding Company	Formed by acquiring and merging Lin City Shipyard and Jiangbei Shipyard; described as a wholly owned subsidiary. 265	Commercial and military shipbuilding.
Seven Color Photon Technology	Established as a Seven Color Stone subsidiary under General Manager Luo Yiwei and Deputy General Manager He Xiangrong. 275	Photon materials, photon chips, and photon components.
Seven Color Aerospace	Newly established subsidiary operating from the flying-vehicle research base. 284	Flying vehicles and aerospace manufacturing.

Operations & Facilities

• The group built a dedicated Supercomputing Center on the fifth underground floor of its Comprehensive Experiment Building. The system occupies more than 1,000 square meters and was constructed solely to support Seven Color Stone research. 173
• Its ultra-heavy CNC-machine project uses Seven Color Type II Special Glass for machine beds and other castings, alongside internally developed steel and cutting-tool materials. 199
• The company held 100% ownership under Zhang Yi and was not publicly listed, preventing a stock-market-based forced acquisition. 239
• Its recruitment system emphasizes internal promotion; a frontline worker could advance into subsidiary leadership through assessments. Recruitment for sensitive work is restricted to Great Hua Empire nationals or Green Card holders, and new hires are barred from confidential technology until their loyalty is confirmed. 276 373
• By the Earth Federation period, the Da Xi Province Earth Headquarters functioned primarily as a research base despite its comparatively low-rise appearance. 601

Partnerships & Relationships

• Great Hua Empire Military — Assigned the group the ultra-heavy high-performance machine-tool mission and later cooperated with it on spaceplane subsystem research. 163 366
• Geely Group — Customer and long-term industrial partner for high-precision bearings, special glass, flying-car engines, and future battery systems. 125 126 156 209
• Great Hua Empire First Aviation Group — Entered a comprehensive strategic partnership; at least half of the parts and materials for each of its aircraft were to come from Seven Color Stone. 360 361
• Aerospace Science and Industry Group — An early military-linked customer and major consumer of Seven Color Stone aviation bearings. 220 221
• Twenty domestic battery partners — Received exclusive access to the group’s new battery, with possible priority access to future products. 240
• Earth Federation — Designated Seven Color Stone as one of the limited military-spacecraft manufacturers after the alien war. 601

Security & Technology Protection

• Foreign firms and consortiums attempted to investigate, replicate, or obtain Seven Color Stone’s optical glass, advanced materials, CNC blueprints, and other technical data. 141 171 350
• The industrial park maintains dedicated security personnel and a controlled foreign-guest reception area near the entrance because of its military collaborations and confidential projects. 240 253
• The group blacklisted the Four Star Group and later refused cooperation with both Four Star and Mitsui Group despite financial offers. 290 361
• A coordinated global cyberattack against three battery-related subsidiaries was detected and countered; Seven Color Stone technicians infiltrated and destroyed the attackers’ computers worldwide. 252
• Battery facilities in Great Hua Empire and Switzerland were later attacked, resulting in casualties and the theft of Swiss production data and raw materials. 255

Story Role / Major Arcs

Rise in Precision Manufacturing

Seven Color Stone progressed from a recognized telescope manufacturer into a major producer of special glass, high-performance bearings, and machine tools. Its Wu City Industrial Exhibition secured more than 30 billion DaHua currency in orders, establishing its reputation in high-precision equipment manufacturing. 81 169 170

The group subsequently completed qualification review for ultra-heavy ultra-high-precision CNC machines and received personal-aircraft production approval from the National Aviation Administration. 201

Battery and Photon Expansion

After acquiring battery-production assets, Seven Color Stone introduced solid-state lithium battery technology and selected domestic partners under restrictive supply conditions. The breakthrough triggered international demand, United States sanctions, espionage pressure, and attacks on associated facilities. 240 245 247 255

The group then established Seven Color Photon Technology, mass-produced photon chips, and reserved early output for national defense and approved domestic enterprises. 275 276 291 292

Aerospace and Space Program

Seven Color Stone’s aero-engine development culminated in a new-concept engine that passed a 5,000-hour test. Its spaceplane program absorbed the temporarily suspended Aerospace Department project, with the group committing to build the first prototype within the first half of the year. 332 352

The group announced the South Heaven Gate high-orbit space-station program and Moon Palace lunar program. Its nuclear-powered Overlord Spear spaceplane was presented as more than 50 meters long, with a payload exceeding 70 tons and an advertised geostationary-orbit delivery cost below 10,000 yuan per ton. 386 388

After the Overlord Spear test flight, Seven Color Stone placed a space-station core module in orbit, completed the first ring of South Heaven Gate, and launched the Thousand Mile Eye lunar resource detector. 394 400

Lunar and Interplanetary Development

The group prepared three Overlord Spear-class spaceplanes to deliver at least 210 tons of supplies for a permanent small Moon Base. The public lunar-launch event attracted worldwide media attention and billions of viewers. 404

Its space program’s first phase was stated to cost at least 50 trillion DaHua currency. The group later organized large-scale bidding for space stations, lunar bases, space factories, and defense systems while quietly preparing industry for the arrival of an alien civilization. 436 448

Earth Federation Era

Following the alien war, Seven Color Stone remained dominant in spaceplane and spaceship-engine manufacturing while gradually withdrawing from its monopoly over Earth-to-space passenger and cargo routes to allow other aerospace companies to emerge. 601 612 613

The group became a central supplier of space mining ships and transportation equipment for large projects, including the Venus Construction Project. It expanded its Moon spaceship production base tenfold to meet expected demand. 603 679