ZURICH/GDANSK, July 30 (Reuters) -Here are some of the main factors that may affect Swiss stocks on Tuesday:

SIKA SIKA.S

Swiss chemicals maker Sika AG, on Tuesday, reported a 9.2% jump in sales for the first half of the year and reiterated it expects local currency sales growth of 6-9% and an "over-proportional" increase in EBITDA for the year.

AVOLTA AVOL.S

Swiss duty-free retailer Avolta on Tuesday reported its first-half turnover rose 11%, supported by broad-based travel demand.

COMPANY STATEMENTS

CLARIANT CLN.S

Second quarter results due.

SIG GROUP SIGNC.S

Half year results due.

LALIQUE GROUP LLQ.S

Lalique Group Applies For Delisting Of Its Shares

KARDEX KARN.S

Kardex Reports Its Half Year Revenue Of 369.7 Million Euros

ECONOMY

Swiss July KOF Indicator due at 0700 GMT. Seen at 102.5.

Reporting by Zurich newsroom and Gdansk newsroom

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