{
 "schemaVersion": 1,
 "generatedAt": "2026-09-06",
 "source": "NHTSA vPIC GetAllManufacturers (public, no auth), paged exhaustively at 100/page",
 "frame": "Every vPIC registrant whose Country field begins with CHINA, on 2026-09-06. No sampling.",
 "normalisation": "Uppercase, punctuation to spaces, collapse whitespace, drop CO/LTD/LIMITED/INC/CORP/CORPORATION/COMPANY/GROUP/MANUFACTURING/MFG. No synonym or romanisation merging.",
 "limits": [
  "vPIC 里的名字是厂商自报的英文名,不是中国登记簿上的法定名称;这里的碰撞不证明登记簿里也碰撞。",
  "归一化只做大小写、标点、空白与常见后缀。拼写差一个字母就算两个名字,所以这是碰撞率的下界。",
  "框架是向美国监管机构注册过的中国主体,不代表中国制造商总体。"
 ],
 "registrants": 2633,
 "distinctNormalisedNames": 2629,
 "collisionGroups": 4,
 "registrantsInACollisionGroup": 8,
 "shareInACollisionGroupPercent": 0.3,
 "largestGroup": 2,
 "groups": [
  {
   "name": "SHANGHAI MEITIAN MOTORCYCLE",
   "registrants": 2,
   "ids": [
    5915,
    11514
   ]
  },
  {
   "name": "TAIZHOU XINLI MACHINERY",
   "registrants": 2,
   "ids": [
    11856,
    14431
   ]
  },
  {
   "name": "TAIZHOU HEZHAN AUTO PARTS",
   "registrants": 2,
   "ids": [
    13679,
    14907
   ]
  },
  {
   "name": "YIZHENG YAOPI AUTOGLASS",
   "registrants": 2,
   "ids": [
    14633,
    14928
   ]
  }
 ]
}