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There's a feature being used at Template:S&P/ASX 50 which we need here. Essentially, it automatically adds every company to the category (in this case, Category:Companies in the Nikkei 225‎‎). Makes maintenance a lot easier 92.71.60.61 (talk) 10:23, 9 January 2024 (UTC)Reply[reply]

This edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request.

After checking with current website of Nikkei 225 components(https://indexes.nikkei.co.jp/en/nkave/index/component?idx=nk225), additional editing is required for the following items.

New components Credit Saison Co., Ltd. (TYO: 8253) Cyberagent Inc. (TYO: 4751) Dena Co., Ltd. (TYO: 2432) DIC Corporation (TYO: 4631) Hoya Corporation (TYO: 7741) Idemitsu Kosan Co., Ltd (TYO: 5019) Japan Airlines Co., Ltd. (TYO: 9201) Japan Exchange Group Inc. (TYO: 8697) Japan Post Holdings Co., Ltd. (TYO: 6178) Lasertec (TYO: 6920) LY Corporation (TYO: 4689) M3 Inc. (TYO: 2413) (Parent company for MDLinx) Marubeni Corp. (TYO: 8002) Mercari Inc. (TYO: 4385) Mitsui Mining & Smelting Co., Ltd. (TYO: 5706) NH Foods, Ltd. (TYO: 2282) Nidec (TYO: 6594) Nitori Holdings Co., Ltd. (TYO: 9843) Omron Corp. (TYO: 6645) Oriental Land Co., Ltd. (TYO: 4661) Orix Co. (TYO: 8591) Otsuka Holdings Co., Ltd. (TYO: 4578) Rakuten Inc. (TYO: 4755) Recruit Holdings Co., Ltd. (TYO: 6098) Renesas Electronics(TYO: 6723) Resona Holdings, Inc. (TYO: 8308) Seiko Epson Corp. (TYO: 6724) SMC Corporation (TYO: 6273) SoftBank Group Corp. (TYO: 9984) Sumitomo Dainippon Pharma Co., Ltd. (TYO: 4506) Yamaha Motor Company, Ltd. (TYO: 7272)

Old components Shinsei Bank Chiyoda Heiwa Real Estate Hokuetsu Paper Maruha Nichiro Matsui Securities Meidensha MES Mitsui Kinzoku Mitsumi Electric Nippon Kayaku Nippon Light Metal Nippon Ham Nippon Soda Nisshin Steel Nittobo Sompo Japan Nipponkoa Holdings Toho Zinc Tokyo Dome Toshiba Toyobo Unitika Uny Yahoo! Japan

Others Shimizu Corp. (TYO: 1803) was wrongly spelled as "Shimz" Showa Shell could be Showa Denko Ykh (talk) 08:24, 5 February 2024 (UTC)Reply[reply]

 Not done: it's not clear what changes you want to be made. Please mention the specific changes in a "change X to Y" format and provide a reliable source if appropriate. HouseBlaster (talk · he/him) 23:42, 5 February 2024 (UTC)Reply[reply]