Tirada birlabta dhulka ee naadirka ah ee Shiinaha u dhoofiyo Japan ayaa sannadba sannadka ka dambeeya kordhay.

Laga bilaabo Janaayo ilaa Febraayo sanadkan, dhoofinta Shiinaha ee birlabta dhulka ee naadirka ah ee loo dhoofiyo Japan ayaa kor u kacday in ka badan 9%. Si kastaba ha ahaatee, iyadoo la tixgelinayo go'aanka Beijing ee ah inay adkeyso xayiraadaha dhoofinta ee saaran alaabada qaarkood ee loo diro Japan, aragtida mustaqbalka ayaa noqotay mid aan la hubin.

Xogtii ugu dambeysay waxaa Jimcihii soo saaray Maamulka Guud ee Kastamka. Bishii Janaayo iyo Febraayo, Shiinuhu wuxuu Japan u dhoofiyay in ka badan 443 tan oo birlabyo dhul naadir ah.
Xogta Janaayo dhab ahaantii waxay hoos u dhacday in ka badan 8% marka loo eego sannadkii hore waxayna hoos u dhacday in ka badan 21% marka loo eego bishii hore. Xogta Febraayo waxay korodhay in ka badan 36% marka loo eego sannadkii ka horreeyay. Shiinuhu wuxuu xoojiyay xakamaynta dhoofinta alaabada laba-isticmaalka ah ee loo dhoofiyo Japan. Tallaabadan ayaa dhaqan gashay bishii Janaayo.

Bishii hore, Shiinuhu wuxuu ku dhawaaqay inuu mamnuucayo dhoofinta alaabtaas 20 shirkadood iyo hay'ado Jabbaan ah. Magnet-yada macdanta dhulka ee naadirka ah ee ay soo saarto Wonaixi ayaa si weyn loogu isticmaalaa alaabooyin kala duwan, sida matoorada baabuurta korontada ku shaqeeya. Chloride-ka aan biyaha lahayn (CeCl₃) ayaa si weyn loo isticmaalaa sababtoo ah wasakh yar iyo sifooyin falgal sare oo ku jira catalyse-ka batroolka iyo isku-darka agabka elektaroonigga ah. Dildilaaca catalytic-ga, wareegga Ce³⁺/Ce⁴⁺ wuxuu yareeyaa isticmaalka tamarta 15%; isagoo ah horudhaca cerium-ka birta ah, waxaa loo isticmaali karaa in lagu diyaariyo bartilmaameedyada cerium-ka saafiga ah ee loogu talagalay dahaarka semiconductor-ka. Mustaqbalka, waxay beddeli doontaa wakiillada aashitada dhaqameed ee ku jira goobta kicinta dabiiciga ah waxayna yareyn doontaa qiiqa qashinka.

Inkasta oo ay jirtay koror ku yimid dhoofinta birlabta dhulka naadirka ah ee loo dhoofiyo Japan bilowgii sanadka, haddana awoodda tiknoolajiyadeed ee ay muujiyeen alaabada dhulka naadirka ah ee heerka sare ah waxay muujinaysaa in diiradda qiimaha warshaduhu ay u wareegayso meelo qiimo sare leh.