Mu 2025, inganda za styrene zagaragaje icyitegererezo cyo "kugabanuka bwa mbere hanyuma kugaruka" mu gihe habayeho imikoranire hagati yo kurekura ubushobozi bw'ibicuruzwa n'itandukaniro ry'ibikenewe mu miterere. Uko igitutu cyo ku ruhande rw'ibicuruzwa cyagabanukaga gato, ibimenyetso byo kugabanuka kw'isoko byarushijeho kugaragara. Ariko, kutumvikana kw'imiterere y'ibicuruzwa biri hejuru n'itandukaniro ry'ibikenewe ntibyakemutse, bituma ibiciro bigabanuka.
Ihindagurika ry’ubushobozi ku ruhande rw’ibicuruzwa ni ryo ryagize ingaruka zikomeye ku isoko mu gice cya mbere cy’umwaka. Mu 2025, ubushobozi bushya bwo gukora styrene mu gihugu bwatangiye kwiyongera, aho ubushobozi bushya bwongerewe buri mwaka burenga toni miliyoni 2. Imishinga minini yo gutunganya no guhuza imiti nka Liaoning Baolai na Zhejiang Petrochemical yagize uruhare mu kwiyongera gukomeye, bituma ubushobozi bwo gukora buzamukaho 18%. Gutanga ubushobozi bwo gukora, hamwe n’igihe gisanzwe cyo gukenera mu gihembwe cya mbere, byarushijeho kwiyongera ubusumbane bw’ibicuruzwa ku isoko n’ibikenewe. Ibiciro bya styrene byakomeje kugabanuka kuva kuri yuan 8.200 kuri toni mu ntangiriro z’umwaka, bigera ku gipimo cyo hasi cya yuan 6.800 kuri toni mu mpera z’Ukwakira, bingana na 17% kuva mu ntangiriro z’umwaka.
Nyuma y’ukwezi kwa Ugushyingo hagati, isoko ryagize uruhare mu kongera ibiciro, aho ibiciro byazamutse bigera kuri 7.200 Yuan kuri toni, bizamukaho hafi 6%, bigaragaza ko hatangiye kugaragara imiterere yo hasi. Gusubira inyuma kwatewe n’ibintu bibiri by’ingenzi. Icya mbere, uruhande rw’ibicuruzwa rwagabanutse: inganda eshatu zifite ubushobozi bwo gutwara toni miliyoni 1.2 ku mwaka muri Shandong, Jiangsu n’utundi turere zahagaritse imirimo yazo by’agateganyo kubera kubungabunga ibikoresho cyangwa igihombo cy’inyungu, bigabanya igipimo cy’imikorere cya buri cyumweru kiva kuri 85% kigera kuri 78%. Icya kabiri, uruhande rw’ikiguzi rwatanze inkunga: bitewe no kwiyongera kw’ibiciro bya peteroli ku rwego mpuzamahanga no kugabanuka kw’ibikoresho byo ku cyambu, igiciro cya benzene cyazamutseho 5.2%, bituma ikiguzi cyo gukora styrene kizamuka. Nyamara, ububiko bwinshi bwagumye ari imbogamizi ikomeye. Mu mpera z’Ugushyingo, ububiko bwa styrene ku byambu by’Ubushinwa bw’Iburasirazuba bwageze kuri toni 164.200, 23% hejuru y’igihe nk’icyo umwaka ushize. Iminsi yo guhindura ububiko yagumye ku minsi 12, irenga cyane igihe gikwiye cy’iminsi 8, bigabanya kwiyongera kw’ibiciro.
Imiterere itandukanye y’ibikenewe byongereye ubukana bw’isoko, bituma habaho "imikorere ibiri" mu nzego z’ingenzi zo hasi. Inganda za ABS (Acrylonitrile-Butadiene-Styrene) zagaragaye nk'ikintu gikomeye cyane: zungukirwa n’ubwiyongere bw’ibinyabiziga bishya bikoresha ingufu n’ibikoresho byo mu rugo bigezweho, icyifuzo cyabyo cya buri mwaka cyiyongereyeho 27.5% uko umwaka utashye. Abakora ABS bakomeye bo mu gihugu bakomeje gukora ku kigero kirenga 90%, bituma habaho gukenera ibikoresho bya styrene mu buryo buhoraho. Mu buryo bunyuranye cyane, inganda za PS (Polystyrene) na EPS (Expandable Polystyrene) zagize ikibazo cyo gukenera buhoro buhoro, bitewe n’intege nke z’igihe kirekire ku isoko ry’amazu. EPS ikoreshwa cyane cyane mu bikoresho byo gukingira inkuta; kugabanuka kwa 15% uko umwaka utashye mu mitangire mishya y’ubwubatsi bw’amazu byatumye abakora EPS bakora ku kigero kiri munsi ya 50%. Hagati aho, abakora PS babonye ko igipimo cyabo cy’imikorere kiri hafi ya 60%, munsi cyane y’icyiciro nk’icyo mu mwaka ushize, bitewe n’izamuka ry’inganda zoroheje nko gupakira no gukinishwa.
Muri iki gihe, isoko rya styrene riri mu cyiciro kiringaniye kirangwa no "kugabanuka kw'ibicuruzwa bitanga itandukaniro ry'ibikenewe ku gipimo cy'ubutaka n'ibikenewe bigabanya ubushobozi bwo kuzamuka". Nubwo hagaragaye imiterere yo kugabanuka kw'ibicuruzwa, imbaraga zo kugabanuka kw'ibicuruzwa biracyategereje gukuraho ibikoresho neza no kugaruka kuzuye kw'ibikenewe. Mu gihe gito, bitewe n'amabwiriza yo gutwara ibicuruzwa mu gihe cy'itumba ku bicuruzwa bya chimique no kongera gutangiza inganda zimwe na zimwe zo kubungabunga, isoko ryitezweho guhinduka ku ruhande. Mu gihe giciriritse kugeza igihe kirekire, hagomba kwitabwaho ingaruka zo kongera ingufu za politiki y'ubutaka ku busabe bwa PS na EPS, ndetse no kwagura ubusabe bwa ABS mu nganda zikora ibintu byo mu rwego rwo hejuru. Ibi bintu bizagena hamwe uburebure bw'izamuka ry'ibiciro bya styrene.
Igihe cyo kohereza: Ukuboza 11-2025