MITRA BISNIS
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PT. Perkebunan Nusantara X (PERSERO)
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PT. Perkebunan Nusantara XI (PERSERO)
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PT. Semen Indonesia
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PT. Semen Tonasa (Semen Indonesia Group)
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PT. PJB
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PT. Ispat Indo
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PT. Makassar Tene
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PT. ABB Sakti Industri
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PT. Jindal Stainless
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Kopkar Semen Tonasa
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PT. Petrokimia Gresik
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PT. Varia Usaha (Semen Indonesia Group)
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PT. Rajawali Citramass (Rajawali Nusantara Indonesia Group)
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PT. Semen Gresik (Semen Indonesia Group)
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PT. Industri Kemasan Semen Gresik
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PT. Master Steel
