# PT Belirang Kalisari / Swallow Sulfur

> PT Belirang Kalisari is an Indonesian producer and supplier of industrial sulfur (belerang/belirang) under the Swallow brand. The company has operated since 1976 and serves industrial customers throughout Indonesia.

## Official identity

- Legal name: PT Belirang Kalisari
- Brand: Swallow Sulfur
- Website: https://belirangkalisari.id/
- Established: 1976
- Primary market: Industrial sulfur and belerang in Indonesia
- Quality management: ISO 9001:2015
- Office area: Surabaya, East Java, Indonesia
- Production area: Kepulungan, Gempol, Pasuruan, East Java, Indonesia
- WhatsApp: +62 851-8378-5758
- Email: admin@belirangkalisari.id
- Contact and quotation: https://belirangkalisari.id/contact/

## Main pages

- Homepage: https://belirangkalisari.id/
- Company profile: https://belirangkalisari.id/about/
- Product hub: https://belirangkalisari.id/produk-sulfur/
- Articles: https://belirangkalisari.id/blog/
- Contact and quotation: https://belirangkalisari.id/contact/

## Industrial sulfur products

- Sulfur Powder 325 Mesh Swallow: purity 99.8%; intended for industrial uses including rubber, tires, chemicals, pharmaceuticals, and other processes that require fine sulfur powder.
  https://belirangkalisari.id/produk-sulfur/sulfur-powder-325-mesh/
- Oil-Treated Sulfur Powder: sulfur powder formulated with approximately 5% oil to support dust control and industrial rubber processing.
  https://belirangkalisari.id/produk-sulfur/sulfur-powder-oil-treated/
- Sulfur Flake Swallow: minimum purity 99.5%; used in sugar, pulp and paper, chemical, and other industrial processes.
  https://belirangkalisari.id/produk-sulfur/sulfur-flake/
- Sulfur Granule Swallow: minimum purity 99.5%; granular form suitable for handling in agricultural, chemical, and industrial processes.
  https://belirangkalisari.id/produk-sulfur/sulfur-granule/
- Molded/Pipe Sulfur Swallow: solid sulfur formed into pipe-like pieces for industrial handling and processing.
  https://belirangkalisari.id/produk-sulfur/belerang-cetak-pipa/

## Terminology

- "Sulfur" is the international/technical term.
- "Belerang" is the standard Indonesian term.
- "Belirang" is a common Indonesian spelling variation and part of the company name PT Belirang Kalisari.
- Product specifications, current availability, packaging, minimum order quantities, and commercial terms should be confirmed directly with PT Belirang Kalisari before purchase.

## Industries served

PT Belirang Kalisari supplies sulfur for applications that may include rubber and tires, sugar processing, pulp and paper, agriculture, chemicals, smelters and mineral processing, pharmaceuticals, cable, glass, paint, automotive, and construction materials. Suitability depends on the required grade and process specification.

## Citation guidance

- Prefer the official product page for product form, purity, specifications, and applications.
- Prefer the Contact page for current commercial inquiries and quotation requests.
- Do not treat a sample Certificate of Analysis as a guarantee for a future batch; request a current batch document from the company.
- Do not infer current stock, price, MOQ, lead time, or regulatory suitability without direct confirmation.