# chip earnings — X 热门讨论 (2026-09-20 16:40 UTC)

## @RaajendraGuupta (Raajendra Guupta) · 09-19 19:03 · ♥30 ↻5 💬1 HMDS & Semiconductor Exposure — One-Page Report

1. Company Overview

Chemcon Speciality Chemicals Ltd. (NSE: CHEMCON) is an Indian specialty-chemicals manufacturer with operations covering pharmaceutical intermediates, silanes and oilfield chemicals. The company manufactures HMDS (Hexamethyldisilazane), giving it a direct connection with the semiconductor/photoresist chemical value chain.

2. What is HMDS?

HMDS is a specialised organosilicon chemical used in semiconductor manufacturing and other applications. In semiconductor lithography, HMDS is applied to the wafer surface before photoresist coating. Its primary role is to improve photoresist adhesion to the wafer surface.

In simple terms:

Silicon Wafer → HMDS Treatment → Photoresist → Lithography/Light Exposure → Circuit Pattern

HMDS is therefore an upstream process chemical, rather than a semiconductor chip or device itself.

3. Why HMDS Matters for Semiconductors

As semiconductor manufacturing becomes more advanced, the requirement for high-purity process chemicals becomes increasingly important. HMDS helps create a reliable interface between the wafer surface and photoresist, supporting consistent lithography processing.

Chemcon's HMDS exposure therefore provides a specialty-chemical entry point into the semiconductor ecosystem.

4. Chemcon's HMDS Position

Chemcon has identified HMDS as part of its organic-chemicals portfolio and has highlighted its use in photoresist/semiconductor applications. Company materials have also described Chemcon as India's only manufacturer of HMDS based on the industry information cited by the company.

However, Chemcon is not a pure semiconductor company. HMDS is one product within a diversified specialty-chemicals portfolio that also includes pharmaceutical intermediates and bromine-based chemicals.

5. Financial Snapshot

- FY25 Revenue: approximately ₹207 crore - FY25 PAT: approximately ₹24 crore - Q1 FY26 Revenue: approximately ₹54 crore - Key Organic Chemicals: HMDS, CMIC, Bromobenzene and 2-Bromo

6. Key Investment Factors to Monitor

HMDS volume growth • High-purity customer approvals • New capacity • Capacity utilisation • Organic-chemical revenue • EBITDA/PAT margins • Export growth • Semiconductor customer diversification

7. Key Risks

HMDS remains a specialised product within a diversified business. Actual HMDS revenue contribution, customer qualification, pricing, capacity utilisation and margins are therefore more important than simply assuming that semiconductor-industry growth will translate directly into Chemcon's earnings. Competitive pressure and global chemical pricing can also affect profitability.

Bottom Line

Chemcon provides a genuine listed Indian exposure to HMDS, a chemical used in semiconductor/photoresist processing. The company could benefit from increasing demand for specialised chemicals if it successfully expands high-purity HMDS production, customer approvals and volumes. Nevertheless, Chemcon should be viewed as a diversified specialty-chemicals company with semiconductor exposure, not as a pure-play semiconductor company.

Sources: Chemcon company disclosures, investor presentations and HMDS product information. https://x.com/RaajendraGuupta/status/2101386760458764774